Red Hat Enterprise Linux 8
Monthly
Denial of service in Red Hat / 389 Directory Server (389-ds-base, versions since ~1.3.2/2013) allows an authenticated LDAP client to crash the server by sending an oversized UNBIND packet over a SASL integrity-protected connection. The oversized data overflows a fixed 512-byte heap receive buffer in sasl_io_recv() (sasl_io.c), and in FreeIPA / Red Hat IdM any domain user, enrolled host, or service account with a valid Kerberos ticket can trigger it after GSSAPI authentication. There is no public exploit identified at time of analysis, and this flaw is distinct from the earlier CVE-2025-14905 schema.c overflow, which did not fix this code path.
Privilege escalation to root and Kerberos-based authentication bypass in SSSD's Active Directory GPO provider affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. Because ad_gpo_extract_smb_components() fails to sanitize '..' sequences in the gPCFileSysPath LDAP attribute (CWE-23), an actor holding AD GPO management rights can force an SSSD-enrolled host to write attacker-controlled files outside the GPO cache as root, injecting Kerberos configuration to bypass authentication. There is no public exploit identified at time of analysis, and the flaw is not listed in CISA KEV.
Local-to-domain-wide root privilege escalation in SSSD's LDAP sudo provider allows an authenticated LDAP directory user with write access to any subtree to inject a malicious sudoRole object and gain root-level sudo on every SSSD-enrolled host. The flaw exists because, when ldap_sudo_search_base is left unset, SSSD searches the entire directory tree for sudoRole objects, trusting rules planted anywhere in the DIT. Rated CVSS 8.8 by Red Hat and reported against RHEL 6 through 10 and OpenShift Container Platform 4; no public exploit identified at time of analysis and it is not listed in CISA KEV.
Heap memory corruption in GIMP's PSD (Photoshop) file parser allows a malicious .psd image to overflow an integer in read_RLE_channel(), producing an undersized heap allocation for the RLE row-length table that is then overwritten row-by-row, potentially yielding denial of service or arbitrary code execution. The flaw affects GIMP as shipped across Red Hat Enterprise Linux 6 through 9 and is triggered when a victim opens or imports a crafted PSD file. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.
Stack-based memory corruption in GIMP's PNM image parser lets an attacker execute code or crash the application when a victim opens a malicious PNM/PBM/PGM/PPM file. The flaw is an off-by-one in pnmscanner_gettoken() that writes a null terminator one byte past a stack buffer; it is local and requires the user to open the crafted file (UI:R). No public exploit is identified at time of analysis, and EPSS is low (0.12%), consistent with the CISA SSVC 'Exploitation: none' judgment.
Heap-based buffer overflow in GIMP's Paint Shop Pro (PSP) image format parser lets an attacker achieve arbitrary code execution or crash the application when a victim opens a maliciously crafted PSP file. The flaw stems from incorrect buffer-size arithmetic on low bit-depth images, and affects GIMP as shipped across Red Hat Enterprise Linux 6 through 9. There is no public exploit identified at time of analysis, and the issue is not listed in CISA KEV; exploitation requires local file-open interaction (CVSS 7.3).
Remote code execution and privilege escalation in HPLIP (HP Linux Imaging and Printing) affects the hpcups print filter across Red Hat Enterprise Linux 6 through 10, where an integer overflow triggered by specially crafted print data can corrupt memory. This is an incomplete-fix follow-up to CVE-2026-8631, meaning the original patch did not fully close the flaw, and no public exploit has been identified at time of analysis. The Red Hat CVSS of 9.8 reflects a network-reachable, unauthenticated attack path, though realistic exploitation depends on how the CUPS print pipeline is exposed.
Denial of service in libarchive's RAR5 reader allows remote attackers to crash applications that decompress untrusted RAR5 archives via a double-free (CWE-415) of the stale filtered_buf pointer. Reported by Red Hat and affecting libarchive as shipped across Red Hat Enterprise Linux 6 through 10, OpenShift Container Platform 4, and Red Hat Hardened Images, the flaw is triggered purely by parsing a malicious archive entry. No public exploit has been identified and the issue is not in CISA KEV; impact is limited to availability (CVSS 7.5, A:H only) with no code execution or data exposure claimed.
Local privilege escalation in the cifs-utils cifs.upcall helper allows low-privileged Linux users to gain root by abusing the kernel request_key interface to load a malicious NSS module inside an attacker-controlled mount namespace. The root-owned helper fails to drop privileges before performing user-name resolution, so the attacker's NSS module executes with full root capabilities. No public exploit identified at time of analysis, but the bug affects every supported Red Hat Enterprise Linux release (6 through 10) and OpenShift Container Platform 4, making it a high-priority hardening fix for any host with CIFS/SMB client functionality.
Heap buffer overflow in GNOME localsearch (formerly tracker-miners) tracker-extract-mp3 component on Red Hat Enterprise Linux 8/9/10, Ubuntu, Debian, and SUSE allows remote attackers to trigger an out-of-bounds heap read by delivering a malformed MP3 file with crafted ID3 performer tags, leading to crashes (DoS) or disclosure of process memory contents. No public exploit identified at time of analysis, and the EPSS score of 0.19% (9th percentile) plus CISA SSVC 'Exploitation: none' indicate low real-world exploitation activity despite the 8.1 CVSS rating. Vendor patches are available across Red Hat (RHSA), Ubuntu USN-8019-1, Debian, and SUSE-SU-2026:0780/21854.
Out-of-bounds read in GStreamer's VMnc decoder allows remote attackers to crash the application or disclose memory contents when a victim opens a maliciously crafted VMnc video file. The flaw stems from a signed integer overflow in payload-size arithmetic that bypasses a length check when cursor dimensions are abnormally large. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Heap buffer overflow in GStreamer's librfb (RFB/VNC client) allows a malicious VNC server to corrupt heap memory on a connecting client, potentially leading to remote code execution or denial of service. The flaw stems from validating rectangle area instead of individual dimensions, letting attacker-controlled rectangles extend beyond the framebuffer. No public exploit identified at time of analysis, though the issue affects GStreamer as shipped across Red Hat Enterprise Linux 6 through 10.
Out-of-bounds read and denial-of-service in GStreamer's RealMedia demuxer (gst-plugins-ugly) allows remote attackers to crash, hang, or potentially leak limited adjacent memory when a victim opens a maliciously crafted RealMedia (.rm) file. The flaw stems from unvalidated offsets in re_skip_pascal_string() and an attacker-controlled loop counter in the FILEINFO metadata parser. No public exploit identified at time of analysis, and the CVE is not on the CISA KEV list.
Out-of-bounds read in the GStreamer RealMedia demuxer (gst-plugins-ugly) allows a maliciously crafted .rm file to crash the consuming application and potentially leak small amounts of adjacent heap memory through stream metadata. The flaw affects Red Hat Enterprise Linux 7, 8, 9, and 10 systems shipping the vulnerable demuxer, and exploitation requires a user to open or otherwise process the file (UI:R). There is no public exploit identified at time of analysis, and the issue is not on the CISA KEV list.
Heap memory corruption in the WavPack audio decoder of GStreamer's gst-plugins-good package allows remote attackers to crash applications or potentially achieve arbitrary code execution when a victim opens a malicious WavPack (.wv) audio file. The flaw, tracked as CVE-2026-53705 and reported by Red Hat, affects Red Hat Enterprise Linux versions 7, 8, 9, and 10, and stems from an integer overflow during buffer size calculation that produces an undersized heap allocation later overrun by decoded samples. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV, but the multimedia decoder attack surface combined with RCE potential makes it a meaningful patching priority.
Out-of-bounds read in the VA JPEG decoder shipped in GStreamer's gst-plugins-bad allows a remote attacker to crash the decoder or potentially leak adjacent memory contents when a victim opens a maliciously crafted JPEG file. The flaw stems from the JPEG parser trusting a segment-length value from the bitstream without verifying it fits within the buffer, and affects Red Hat Enterprise Linux 6 through 10 where the plugin is consumed. There is no public exploit identified at time of analysis and the issue is not in CISA KEV.
Local privilege escalation via arbitrary root-owned file overwrite affects libreport's ABRT post-create event handler scripts on Red Hat Enterprise Linux 6, 7, and 8. The event scripts write output using shell redirections that lack the O_NOFOLLOW flag, so a local low-privileged user who plants a symlink in a writable crash-dump path can cause the root shell to follow it and clobber any file on the system, which can be leveraged for full system compromise. SSVC rates technical impact as total, but there is no public exploit identified at time of analysis and EPSS is negligible (0.02%, 5th percentile).
Local privilege escalation in the abrt-dbus D-Bus service on Red Hat Enterprise Linux 6, 7, and 8 allows a low-privileged local user to race the ChownProblemDir method against still-running post-create event handlers. By invoking ChownProblemDir while privileged event scripts hold a write lock on the dump directory, the attacker gains filesystem ownership of files being written by root-context handlers, enabling tampering with privileged output and potential privilege escalation. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Local privilege escalation in the abrt-dbus D-Bus service on Red Hat Enterprise Linux 6, 7, and 8 allows any unprivileged local user to win a TOCTOU race against the SetElement method, writing arbitrary text files into root-owned dump directories. By exploiting the gap between dump directory creation and post-create event execution, an attacker bypasses package validation and persists crash data for unpackaged binaries inside privileged paths, with no public exploit identified at time of analysis.
Heap buffer overflow in 389 Directory Server (389-ds-base) SASL I/O layer allows authenticated remote attackers to crash the LDAP service or achieve remote code execution after a successful SASL bind with integrity protection (SSF > 0). The flaw stems from an integer overflow in sasl_io_start_packet() that bypasses the nsslapd-maxsasliosize ceiling, enabling roughly 2 MB of attacker-controlled heap corruption. No public exploit identified at time of analysis, and the impact is amplified in FreeIPA and Red Hat Identity Management deployments where any enrolled user, host, or service principal qualifies as an authenticated attacker.
Root command injection in dracut's legacy DHCP path allows adjacent-network attackers to execute arbitrary commands inside the initramfs by sending crafted DHCP options (e.g., malicious hostname) that are written unescaped into temporary shell scripts. The flaw affects Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4, granting full system compromise during early boot. No public exploit identified at time of analysis, and EPSS is low (0.16%, 36th percentile), but SSVC rates technical impact as total.
Remote denial of service in 389 Directory Server (Red Hat Directory Server 11/12/13 and Red Hat Enterprise Linux 6 through 10) allows unauthenticated network attackers to crash the LDAP daemon by exploiting an unchecked BER structure allocation in the dereference control plugin when the host is under memory pressure. No public exploit identified at time of analysis, and EPSS exploitation probability is very low (0.09%, 25th percentile), but the unauthenticated network-reachable nature warrants prompt patching of internet-facing or business-critical directory services.
Out-of-bounds heap write in X.Org X server and Xwayland DRI2 buffer handling allows a local authenticated client to corrupt server memory by requesting multiple DRI2BufferBackLeft attachments alongside one DRI2BufferFrontLeft. Successful exploitation crashes the display server or, when the X server runs setuid root (a still-common legacy deployment), enables local privilege escalation to root. No public exploit is identified at time of analysis and the issue is not listed in CISA KEV.
Local privilege escalation in the X.Org X server and Xwayland arises from a use-after-free in SyncChangeCounter() that a local authenticated attacker can trigger by orchestrating two client connections - one creating multiple SyncCounters, the other destroying them while they are being changed. On systems where the X server still runs as root (common on legacy Linux setups), successful exploitation yields root code execution; at minimum it crashes the display server. No public exploit identified at time of analysis, but the bug is confirmed by Red Hat and a fix has landed upstream in xserver.
Local privilege escalation in the X.Org X server and Xwayland arises from a use-after-free in FreeCounter() when SyncCounter objects are destroyed across multiple client connections. Authenticated local attackers on affected Red Hat Enterprise Linux 6 through 10 systems can crash the server or escalate to root when the X server runs with elevated privileges. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Local privilege escalation in X.Org X server and Xwayland stems from an incomplete fix for CVE-2025-26597, where CheckKeyTypes() fails to clamp non-canonical key types to XkbMaxShiftLevel, enabling stack-based buffer overflows. Authenticated local users on Red Hat Enterprise Linux 6 through 10 can crash the display server or, when X runs as root, escalate to root privileges. No public exploit identified at time of analysis, though the upstream commit reveals the vulnerable code path and the prior CVE-2025-26597 has known exploitation history.
Stack-based buffer overflow in X.Org X server and Xwayland's _XkbSetMapChecks() function allows local authenticated attackers to crash the server or potentially escalate privileges to root when the X server runs with elevated privileges. The flaw resides in CheckKeyTypes() writing to a fixed mapWidths[256] stack buffer at a client-controlled offset, affecting Red Hat Enterprise Linux versions 6 through 10. No public exploit identified at time of analysis, but an upstream fix has been merged into the xserver repository.
Local privilege escalation in the X.Org X server and Xwayland stems from a stack-based buffer overflow during font alias resolution, where a 256-byte server-side stack buffer is overrun by libXfont2 alias target names of up to 1023 bytes. An authenticated local attacker who can influence font alias files can crash the server or, when the X server runs as root, escalate to root privileges. No public exploit is identified at time of analysis and CVSS is 7.8 (Local/Low complexity/Low privileges).
Local privilege escalation in X.Org X server and Xwayland enables authenticated local users to trigger a use-after-free in miSyncDestroyFence() by racing two client connections against a shared fence object. Successful exploitation can crash the display server or escalate privileges to root when the X server runs as root, which remains common on legacy and embedded Linux deployments. No public exploit identified at time of analysis, but an upstream fix has been committed by the X.Org maintainers.
Local privilege escalation in libinput affects Red Hat Enterprise Linux 7, 8, 9, and 10 by allowing a local attacker with access to /dev/uinput to inject arbitrary udev properties via the libinput-device-group helper. Exploitation can result in root code execution through abuse of udev REMOVE_CMD properties that are run when a device is removed, mapping to CWE-78 (OS Command Injection). No public exploit identified at time of analysis, but the issue is vendor-confirmed by Red Hat.
Stack-based buffer overflow in rrdcached (the caching daemon for rrdtool) allows a local attacker with socket access to crash the daemon or potentially execute arbitrary code by sending an oversized CREATE request. The flaw is tracked under CWE-121 with a CVSS 3.1 base score of 7.8 (AV:L/AC:L/PR:L), reported by Red Hat against RHEL 6 through 10, and there is no public exploit identified at time of analysis.
Local code execution in Poppler's Splash rendering backend allows attackers to compromise applications that open attacker-supplied PDFs by triggering an integer overflow in tilingPatternFill that produces an undersized heap allocation and a subsequent out-of-bounds write. The flaw affects Poppler as shipped across Red Hat Enterprise Linux 6 through 10 and Red Hat Hardened Images, with impact including arbitrary code execution, information disclosure, or denial of service in the rendering process. No public exploit identified at time of analysis, and the CVSS 7.8 vector requires user interaction to open a malicious PDF.
Command injection in the rpmuncompress utility of RPM allows local attackers to execute arbitrary commands when a victim extracts a maliciously crafted ZIP, 7z, or GEM archive whose top-level folder name contains shell metacharacters. The flaw affects Red Hat Enterprise Linux 6 through 10 and downstream products including OpenShift Container Platform 4, Satellite 6, Red Hat Hardened Images, and Quarkus Native Builder. No public exploit identified at time of analysis, and the issue requires user interaction with an attacker-supplied archive, but successful exploitation yields full code execution under the extracting user's identity.
Certificate validation bypass in GnuTLS (as shipped in Red Hat Enterprise Linux 6 through 10, OpenShift Container Platform 4, and Red Hat Hardened Images) lets a remote attacker defeat hostname verification: when a certificate carries an oversized Subject Alternative Name, the library incorrectly abandons SAN matching and falls back to the legacy Common Name field, accepting certificates it should reject. An attacker positioned to intercept traffic can present such a certificate to impersonate a trusted server and conduct spoofing or man-in-the-middle attacks against TLS clients that rely on GnuTLS. There is no public exploit identified at time of analysis, no CISA KEV listing, and no EPSS score in the provided data.
Improper certificate validation in GnuTLS (CWE-295) lets a remote attacker defeat TLS hostname verification by presenting a certificate that carries URI or SRV Subject Alternative Names, causing GnuTLS to incorrectly fall back to matching the connection's DNS hostname against the certificate's Common Name (CN) and enabling service spoofing or man-in-the-middle interception of sensitive data. The flaw was reported by Red Hat against GnuTLS as shipped in Red Hat Enterprise Linux 6 through 10, OpenShift Container Platform 4, and Red Hat Hardened Images, and carries a CVSS 3.1 base score of 7.1 driven by high integrity impact. No public exploit has been identified at time of analysis and the issue is not listed in CISA KEV; exploitation requires the victim to initiate a connection to attacker-controlled infrastructure (UI:R).
Information disclosure and denial of service in GnuTLS (libgnutls) let a remote, unauthenticated attacker trigger a heap overread against TLS servers that perform legacy RSA key exchange using a private key backed by a PKCS#11 token. By sending an abnormally short premaster secret, the attacker causes the library to read beyond an allocated buffer (CWE-1284), which can leak a small amount of adjacent heap memory and, per the CVSS vector, more strongly impacts availability (A:H). No public exploit has been identified at time of analysis and the issue is not in CISA KEV; EPSS and SSVC data were not provided.
Heap buffer overflow in libsolv allows local attackers to corrupt memory when a vulnerable application processes a maliciously crafted .solv repository metadata file. The flaw stems from insufficient input validation during decompression of attacker-controlled data, enabling information disclosure, control-flow alteration, or denial of service across multiple Red Hat Enterprise Linux releases and SUSE distributions. SSVC marks exploitation as PoC-level with total technical impact, while EPSS remains very low at 0.01%, indicating limited probability of widespread exploitation despite high severity.
Remote code execution in Samba's printing subsystem allows remote attackers to inject arbitrary shell commands via crafted print job descriptions. The flaw stems from unescaped expansion of the client-controlled '%J' substitution token into the configured 'print command', enabling shell metacharacter injection. No public exploit has been identified at time of analysis, and EPSS scores exploitation probability at only 0.08%, but CVSS 9.0 with scope change reflects high potential impact on any Samba host exposing print services.
Remote code execution in Cockpit's system logs UI allows authenticated users to inject shell metacharacters into unsanitized URL parameters, executing arbitrary commands on RHEL 7/8/9/10 hosts. Attack requires low-complexity exploitation by a logged-in user who can craft malicious links targeting the logs interface. No public exploit identified at time of analysis, though the vulnerable code section is publicly accessible on GitHub. EPSS data not available; CVSS 8.0 reflects high impact across confidentiality, integrity, and availability if user interaction occurs.
Certificate validation in GnuTLS can be bypassed when a certificate chain contains Certificate Authorities with only excluded name constraints followed by CAs with permitted name constraints. Remote attackers can exploit this flaw (CVSS 7.4, AV:N/AC:H) to present invalid certificates that pass validation, enabling man-in-the-middle attacks or service impersonation against TLS-protected communications. The vulnerability affects Red Hat Enterprise Linux versions 6-10, OpenShift Container Platform 4, and Red Hat Hardened Images. No public exploit or active exploitation confirmed at time of analysis, though the technical nature suggests targeted attacks against high-value certificate infrastructure are feasible.
Heap buffer overflow in GnuTLS DTLS handshake allows remote unauthenticated attackers to crash applications or corrupt memory. The vulnerability stems from inconsistent fragment validation in merge_handshake_packet(), where attackers can send crafted DTLS fragments with conflicting message_length values to trigger out-of-bounds writes. Red Hat reported this affecting RHEL 6-10 and OpenShift Container Platform 4. CVSS 7.5 (High) reflects network-accessible denial of service, though memory corruption may enable further exploitation. No EPSS data, KEV status, or POC availability reported at time of analysis, but the remote unauthenticated attack vector (AV:N/PR:N) and low complexity (AC:L) make this a priority for systems using DTLS.
Out-of-bounds read in the GnuTLS DTLS handshake reassembly logic lets remote unauthenticated attackers trigger an integer underflow by sending malformed handshake fragments with zero length and a non-zero offset, enabling information disclosure or denial of service against Red Hat-shipped GnuTLS (RHEL 6 through 10, OpenShift Container Platform 4, and Red Hat Hardened Images). Reported by Red Hat with a vendor patch available and errata released; no public exploit identified at time of analysis, and EPSS is very low (0.04%, 11th percentile) with SSVC exploitation status 'none'. CVSS 9.1 reflects high confidentiality and availability impact over the network at low complexity without authentication.
Certificate name-constraints bypass in GnuTLS allows a remote attacker to craft a leaf certificate whose Subject Alternative Name differs only in letter casing from a constrained dNSName or rfc822Name, causing GnuTLS to accept a certificate that its excludedSubtrees/permittedSubtrees policy should reject. The flaw stems from case-sensitive comparison of name-constraint labels and enables unauthorized access, impersonation, or information disclosure across software (notably Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4) that relies on GnuTLS for X.509 validation. SSVC notes a public proof-of-concept exists, though EPSS exploitation probability is very low (0.03%, 9th percentile) and the issue is not in CISA KEV.
Denial of service in libxml2 allows a remote attacker to crash any application that uses the library to XSD-validate an attacker-supplied XML document containing an internal entity reference. The flaw is a CWE-843 type confusion triggered during schema validation, affecting a wide range of Red Hat products that ship libxml2. No public exploit identified at time of analysis, and EPSS is very low (0.01%, 3rd percentile), consistent with SSVC exploitation status of 'none'.
Out-of-bounds memory read in the X.Org X server's XKB key types request handling allows a local, authenticated client to disclose adjacent server memory or crash the server (DoS), with higher-impact outcomes possible in certain configurations. The flaw affects the X server component shipped across Red Hat Enterprise Linux 6 through 10 and corresponding SUSE releases, and stems from missing bounds validation on an XKB request. There is no public exploit identified at time of analysis, EPSS is negligible (0.01%), and CISA/SSVC records no known exploitation.
Local privilege-relevant memory corruption in the X.Org X server arises from a use-after-free in the XSYNC fence-triggering path (miSyncTriggerFence()), letting any client with a connection to the display crash the server or corrupt heap memory without user interaction. Rated CVSS 7.8 with total technical impact per CISA SSVC, it currently shows no public exploit identified at time of analysis, no CISA KEV listing, and a very low EPSS of 0.01% (3rd percentile). Because the X server frequently runs with elevated privileges, successful memory corruption could escalate beyond denial of service.
Memory-disclosure and denial-of-service in the X.Org X server arises from an integer underflow (CWE-191) in the XKB compatibility map handling, which lets a client with local or remote X11 access trigger an out-of-bounds buffer read. Any attacker able to open a connection to the display server can crash it or read adjacent server memory, with Red Hat and SUSE rating the technical impact as total; no public exploit identified at time of analysis and EPSS is negligible (0.01%, 2nd percentile). This was reported by Red Hat and affects the X server shipped across Red Hat Enterprise Linux 6 through 10.
Heap buffer overflow in GNU Binutils XCOFF linker allows arbitrary code execution when a local user processes a malicious object file. Red Hat Enterprise Linux versions 6 through 10 are confirmed affected via CPE data. CVSS 7.8 reflects local attack vector requiring user interaction (opening/linking the crafted file). No active exploitation confirmed (not in CISA KEV), and no public proof-of-concept identified at time of analysis. Real-world risk depends heavily on whether development workflows involve linking untrusted XCOFF files, which is uncommon outside AIX/PowerPC cross-compilation scenarios.
Out-of-bounds write in dnsmasq's DHCP split-relay handler allows remote unauthenticated denial of service via crafted BOOTREPLY packets. Affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4 when dnsmasq runs with the --dhcp-split-relay option enabled. CVSS 7.5 (AV:N/AC:L/PR:N/UI:N) indicates trivial network exploitation, but real-world risk is mitigated by the non-default configuration requirement. No public exploit or active exploitation (CISA KEV) confirmed at time of analysis, though CWE-787 (out-of-bounds write) primitives are well-understood by attackers.
Buffer overflow in GIMP's GIF image loading component allows arbitrary code execution when a victim opens a specially crafted GIF file. This local‑attack vulnerability (CVSS 3.1: AV:L/PR:N/UI:R) can lead to full compromise of the user's session. No public exploit has been identified, and EPSS exploitation probability is very low (0.01 %).
Remote unauthenticated attackers can crash GnuTLS servers by sending malformed TLS handshake messages containing invalid Pre-Shared Key binder values, triggering a NULL pointer dereference. Red Hat Enterprise Linux versions 6-10, OpenShift Container Platform 4, and Red Hat Hardened Images are affected. Vendor patches are available. EPSS score of 0.08% (24th percentile) suggests low current exploitation probability despite network-accessible attack vector. SSVC framework classifies this as automatable with partial technical impact but no known exploitation, making this a medium-priority patching target focused on preventing service disruption rather than data breach.
Local privilege escalation in libcap's cap_set_file() function affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4, where a TOCTOU race condition allows an unprivileged user with write access to a parent directory to redirect file capability updates onto an attacker-controlled file. Successful exploitation can inject or strip Linux file capabilities on arbitrary executables, yielding full privilege escalation on the host. No public exploit identified at time of analysis and EPSS is 0.01%, but a vendor patch is available.
Remote code execution in Cockpit's web interface allows unauthenticated attackers to execute arbitrary commands on the host system by injecting malicious SSH options through the login endpoint. Affecting Red Hat Enterprise Linux versions 7 through 10, this critical pre-authentication vulnerability (CVSS 9.8) requires no credentials and executes code before any authentication checks occur. EPSS data not available; no confirmed active exploitation (CISA KEV) at time of analysis, though the pre-authentication nature and command injection vector present severe risk for internet-exposed Cockpit instances.
Remote denial of service via integer overflow in Corosync cluster engine affects Red Hat Enterprise Linux 7-10 and OpenShift Container Platform 4. Unauthenticated attackers can send crafted UDP packets to crash Corosync services running in totemudp/totemudpu mode (CVSS 7.5, AV:N/PR:N). EPSS data not provided; no public exploit identified at time of analysis. Impacts high-availability cluster deployments where Corosync provides quorum and messaging services.
Out-of-bounds read in Corosync allows unauthenticated remote attackers to crash cluster nodes and potentially leak memory via malformed UDP packets. Affects default totemudp/totemudpu configurations across Red Hat Enterprise Linux 7/8/9/10 and OpenShift Container Platform 4. CVSS 8.2 (High) with network attack vector, low complexity, and no authentication required. EPSS and exploitation status data not available; no public exploit identified at time of analysis. Impacts high-availability clustering infrastructure commonly used in enterprise production environments.
Heap-based buffer overflow in gdk-pixbuf's JPEG image loader enables remote denial of service through malformed JPEG images without user interaction. The vulnerability triggers during automated image processing operations like thumbnail generation across Red Hat Enterprise Linux 6 through 10, allowing unauthenticated network attackers to crash applications that process JPEG images. EPSS score of 0.09% (25th percentile) suggests low observed exploitation activity, consistent with SSVC assessment showing no active exploitation despite the vulnerability being fully automatable.
Remote code execution in libarchive on 32-bit systems allows unauthenticated attackers to execute arbitrary code via specially crafted ISO9660 images. The vulnerability affects Red Hat Enterprise Linux versions 6 through 10 and OpenShift Container Platform 4, with vendor patches released across multiple RHSA advisories. Despite the CVSS 7.5 score and network attack vector, EPSS exploitation probability is low (0.05%, 16th percentile) and no public exploit is identified at time of analysis, though SSVC classifies the vulnerability as automatable with total technical impact.
HTTP request smuggling in Undertow (the embedded web server underpinning JBoss EAP, Red Hat Data Grid, and Apache Camel for Spring Boot) allows remote unauthenticated attackers to bypass front-end security controls by prepending whitespace to header lines. Undertow strips leading spaces from the first header line in violation of RFC 7230, creating a parser discrepancy between upstream proxies and the application server. No public exploit identified at time of analysis, and EPSS sits at 0.13% (32nd percentile), but the CVSS 9.1 and broad Red Hat middleware exposure make this a high-value target for chained attacks.
HTTP request smuggling in Undertow allows remote unauthenticated attackers to send `\r\r\r` as a header block terminator, which can desynchronize parsing when Undertow sits behind specific intermediaries such as older Apache Traffic Server or Google Cloud Classic Application Load Balancer. The flaw affects numerous Red Hat distributions of Undertow (JBoss EAP 7/8, Data Grid 8, Fuse 7, Camel for Spring Boot 4, RHEL 8/9/10) and carries a CVSS 9.1, though EPSS is only 0.04% and there is no public exploit identified at time of analysis.
HTTP request smuggling in Red Hat Undertow allows remote unauthenticated attackers to bypass front-end security controls by exploiting parsing discrepancies between Undertow and upstream proxies when handling crafted header names. The flaw (CWE-444) affects Undertow embedded in multiple Red Hat products including JBoss EAP 7/8, Data Grid 8, Fuse 7, and Apache Camel for Spring Boot 4, with Red Hat issuing patches via RHSA-2026:25125 and RHSA-2026:25126. There is no public exploit identified at time of analysis and EPSS is low (0.10%), but CVSS 9.1 and SSVC 'total' technical impact warrant prompt patching of internet-facing deployments.
Remote denial-of-service in libssh 0.11.x and earlier allows unauthenticated attackers to crash SSH server daemon processes via malformed GSSAPI authentication OID payloads. The vulnerability affects the ssh_get_hexa() API function when processing zero-length input, exploitable remotely when GSSAPI authentication is enabled and logging verbosity is set to SSH_LOG_PATCH (level 3) or higher. Red Hat, Ubuntu, SUSE, and Debian have released patches (libssh 0.11.4 and 0.12.0). EPSS score of 0.09% and SSVC assessment indicate low real-world exploitation likelihood despite network attack vector, with no active exploitation confirmed. Ubuntu classified this as low priority, and CISA SSVC notes exploitation as 'none' but 'automatable' with partial impact.
Denial of service in p11-kit's PKCS#11 RPC client allows a malicious remote token to trigger a NULL pointer dereference or undefined behavior in applications consuming derive-key operations. The flaw is reachable when an application calls C_DeriveKey against a remote token using IBM Kyber or IBM BTC derive mechanisms whose parameters are NULL, with the RPC client returning an uninitialized value. EPSS is low (0.10%) and no public exploit identified at time of analysis; SSVC marks exploitation as none but automatable.
Heap buffer over-read in GIMP's PCX image loader allows a remote attacker who can convince a user to open a crafted PCX file to disclose adjacent heap memory and crash the application. The flaw stems from an off-by-one error (CWE-193) and is tracked across Red Hat Enterprise Linux 6 through 9. No public exploit identified at time of analysis and EPSS is very low (0.06%, 19th percentile), with CISA SSVC rating exploitation as 'none'.
A signed integer overflow vulnerability exists in the libtiff library's putcontig8bitYCbCr44tile function that leads to out-of-bounds heap writes through incorrect memory pointer calculations. Red Hat Enterprise Linux versions 6, 7, 8, 9, and 10 are confirmed affected. An attacker can exploit this by tricking a user into opening a specially crafted TIFF file, potentially achieving arbitrary code execution or causing application crashes.
Heap memory disclosure in libarchive allows remote unauthenticated attackers to read sensitive heap data by submitting a malformed RAR archive. The flaw affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4, with vendor patches available per multiple RHSA advisories (RHSA-2026:8492 through RHSA-2026:8908). Despite the HIGH CVSS score of 7.5 and network-exploitable vector requiring no authentication, the EPSS score of 0.14% (35th percentile) indicates low observed exploitation probability. No public exploit code identified at time of analysis, and not listed in CISA KEV, suggesting this remains a patch-and-monitor priority rather than emergency response.
Information disclosure and denial-of-service in GNU Binutils' BFD linker (ld) arises from an out-of-bounds heap read when parsing malformed XCOFF object files. A local attacker who convinces a user to link or otherwise process a specially crafted XCOFF file can leak adjacent heap memory (CWE-125) or crash the linking process. Tracked by Red Hat across RHEL 6 through 10 and OpenShift 4; no public exploit is identified and EPSS exploitation probability is negligible (0.01%, 2nd percentile).
Out-of-bounds heap read in the BFD linker (ld) component of GNU Binutils allows information disclosure or an application-level crash when a victim is induced to process a crafted XCOFF object file. Affected across Red Hat Enterprise Linux 6 through 10 (and OpenShift Container Platform 4), exploitation requires user interaction and local file processing - there is no public exploit identified at time of analysis, and the EPSS probability is negligible (0.01%, 2nd percentile).
Infinite loop in libarchive's RAR5 decompression (archive_read_data) allows remote unauthenticated denial-of-service via malformed archive that passes checksum validation. Affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4. EPSS 0.04% (11th percentile) suggests low exploitation probability despite CVSS 7.5. Vendor patches available from Red Hat and Ubuntu. Upstream fix in libarchive PR#2877. No active exploitation confirmed (not in CISA KEV).
CPU exhaustion denial of service in jwcrypto's JWK.import_key() allows a remote unauthenticated attacker to supply a crafted JWK with an arbitrarily large key_ops array and trigger O(n²) duplicate-detection work, consuming CPU proportional to the square of the array length. Any Python application that passes externally-supplied JWK material to this API - via ECDH-ES key agreement, OIDC dynamic client registration, DPoP proof parsing, or ACME account key registration - is vulnerable. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis; CVSS rates this at 5.9 (Medium) with AC:H reflecting the requirement that attacker-controlled key material must reach the vulnerable code path.
A path-handling flaw in the containers/storage Go library lets a crafted tar archive containing a malicious whiteout entry (for example 'victim/.wh.') cause UnpackLayer, ApplyLayer, or ApplyUncompressedLayer to replace the extraction destination directory with an arbitrary file. Systems that unpack container image layers with this library — notably Red Hat Enterprise Linux 10, Red Hat Ansible Automation Platform 2, OpenShift Container Platform 4, Quay 3, OpenShift Virtualization, Dev Spaces, and Red Hat Hardened Images — are in scope. Exploitation requires the operator or process to unpack an attacker-supplied archive, and the integrity impact is confined to the local extraction target; no public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA KEV, consistent with the modest CVSS 3.1 base score of 4.4.
Let me analyze this CVE. CVE-2026-79705: buildah/copier Go package. Path traversal via malicious symlinks in crafted tar archive, escaping extraction directory, writing files outside destination. When used outside Buildah by a non-root caller. Buildah itself uses chroot hardening, not affected. CVSS 3.1: 4.5, AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N CWE-22 Path Traversal. CPE: Red Hat Ansible Automation Platform 2, Red Hat Enterprise Linux 10 (odd that RHEL 10 listed; also RHEL 8/9/10 tags). Tags: Path Traversal, RHEL 10, RHEL 8, RHEL 9, OpenShift Container Platform 4, Ansible Automation Platform 2, Quay 3, Red Hat Hardened Images, OpenShift Virtualization 4, OpenShift Dev Spaces, Red Hat. SSVC: Exploitation none, Automatable no, Technical Impact partial. No EPSS given, no KEV. No POC mentioned. Patch data missing. Product name: buildah/copier Go package — but "1-3 words ONLY". "Buildah copier" or "containers/copier"? The primary product affected in CPE is Ansible Automation Platform 2. Hmm. The vulnerable component is the buildah/copier Go package. Product name should be... "Buildah copier" maybe. Let me use "Buildah copier". Actually the go package is github.com/containers/buildah/copier. Let's say "Buildah copier" as product name. Or "copier (Buildah)". Keep 1-3 words: "Buildah copier". Prevalence: Buildah itself is widely used but this affects copier library when used outside Buildah. Red Hat Ansible Automation Platform 2 is enterprise software. Prevalence: medium? Buildah library used broadly... The affected deployments: Red Hat products. Hmm. I'd say "medium". Assessed CVSS: The described exploitation: non-root caller, crafted tar archive, malicious symlinks. Attack vector network (AV:N given, PR:H, UI:R). The score of 4.5 matches AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N = let's verify: AV:N 0.85, AC:L 0.77, PR:H 0.27, UI:R 0.62. Exploitability = 8.22 * 0.85 * 0.77 * 0.27 * 0.62 = 8.22*0.85=6.987; *0.77=5.38; *0.27=1.4526; *0.62=0.9006. Impact: ISC affected C:
A memory leak in the gss-ntlmssp NTLM target-info parser allows a malicious or man-in-the-middle NTLM server to gradually exhaust memory on the client by sending a crafted NTLM CHALLENGE message containing duplicated string-valued AV_PAIR entries. Each duplicate causes the parser to allocate a new string buffer without freeing the previous one, so repeated authentications accumulate leaked allocations and eventually degrade or crash the client, producing a denial of service. The impact is availability-only and low severity (CVSS 3.7, A:L), exploitation requires an attacker to control the NTLM challenge, and no public exploit code or CISA KEV listing was identified at time of analysis.
GNOME Shell fails to validate the declared dimensions of icons returned by a remote search provider over D-Bus against the actual icon data buffer, producing an out-of-bounds read when an oversized size is supplied. A malicious or compromised search provider registered in a user's session can crash the shell — terminating the desktop session — and may leak fragments of adjacent shell memory. Rated CVSS 6.1 (AV:L/UI:R/C:L/A:H) by Red Hat; no public exploit code or CISA KEV entry was identified at time of analysis, so exploitation currently requires a locally present hostile search provider rather than remote access.
An out-of-bounds read in the SSSD NSS responder allows any local user who can reach the responder's UNIX socket to crash the process by sending a specially crafted service lookup request, degrading local name/service resolution on the host. Only SSSD deployments shipped with Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 nodes are listed as affected by the vendor CPE data, and the flaw requires local socket access rather than network reach. There is no public exploit code and no CISA KEV listing; SSVC records exploitation as 'none' and the issue carries a modest CVSS 3.1 base score of 4.0 (availability impact only).
Denial of service in multipathd allows a local attacker with access to the UNIX control socket to permanently block the daemon's listener thread by sending valid commands and then refusing to read the replies. This renders legitimate IPC operations - such as multipath path queries and storage management commands - unable to complete until the daemon is restarted. Red Hat, the reporting source, explicitly confirms the issue is bounded to availability impact only: no privilege escalation, no code execution, and no confidentiality or integrity loss. No public exploit code has been identified at time of analysis.
Heap buffer overflow in the libtiff `tiff2pdf` utility allows local attackers to cause severe memory corruption and application crashes by supplying a crafted BigTIFF file. The root cause is an integer truncation: a 64-bit `StripByteCounts` value is silently narrowed to 32 bits, producing an undersized heap allocation that a subsequent memory copy overflows. Red Hat has issued advisory RHSA-2026:53467 and an upstream fix is available via libtiff GitLab merge request #729; no public exploit or active exploitation has been identified at time of analysis.
Symlink-following in libvirt's qemuTPMEmulatorPrepareHost() allows a local attacker with access to the swtpm service account to redirect a path-based chown() call - executed by libvirtd running as root - to transfer ownership of any arbitrary file on the system to the swtpm user. This affects libvirt on Red Hat Enterprise Linux 6 through 10. With ownership of a sensitive file such as /etc/shadow or a cron directory transferred to swtpm, the attacker gains a privilege escalation primitive beyond the swtpm account boundary. No public exploit or active exploitation has been identified at time of analysis.
Integer overflow in GStreamer's gst-plugins-good isomp4 plugin exposes adjacent heap memory when parsing CEA-608 closed-caption data embedded in specially crafted MP4 or MOV files. The 32-bit unsigned arithmetic wraparound bypasses a bounds check, enabling an out-of-bounds heap read of up to 244 bytes that is forwarded into downstream caption output - leaking process memory to an attacker who controls caption rendering output. Affected platforms include Red Hat Enterprise Linux 6 through 10; no public exploit has been identified at time of analysis, and no active exploitation is confirmed.
JavaScript injection in Evolution email client allows a remote, unauthenticated attacker to execute arbitrary JavaScript within the mail-viewing context by sending a specially crafted HTML email containing a spoofed vCard control. When the victim clicks the vCard control, Evolution's trusted JavaScript handler incorrectly places an attacker-controlled javascript: URL into an iframe's src attribute, bypassing Evolution's own script-execution protections for email content. The vulnerability is classified CWE-84 (improper neutralization of encoded URI schemes), and exploitation requires one user interaction gesture - clicking the vCard element - making it realistic against any Evolution user on a RHEL or GNOME desktop. No public exploit code or CISA KEV listing has been identified at time of analysis.
Pacemaker Configuration System (PCS) on Red Hat Enterprise Linux 8, 9, and 10 exposes an arbitrary file-read primitive to local members of the 'haclient' group via the `pcs host auth --token` command. The pcsd daemon reads the attacker-specified file path with root privileges, base64-encodes up to 256 bytes of content, and transmits it through cluster node communication channels the attacker controls - enabling exfiltration of short sensitive files such as API tokens, symmetric keys, or credential snippets that are otherwise inaccessible to the attacker. No public exploit has been identified at time of analysis, but the attack requires only local access and group membership, making it a realistic insider-privilege escalation threat in multi-tenant HA environments.
Case-insensitive username comparisons in two code paths of the CUPS scheduler - printer ACL validation and private-attribute filtering - allow an authenticated adjacent-network attacker to bypass username-based access controls in configurations that rely on those ACLs. The bypass exposes private print attributes to users who should be excluded by ACL policy. Affected deployments span Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified at time of analysis, consistent with the low CVSS base score of 3.0.
Heap out-of-bounds read in CUPS's cupsUTF32ToUTF8() transcoding function exposes partial daemon heap memory to adjacent-network attackers without authentication. The vulnerable code path is reachable via SNMP supply-description parsing, meaning any attacker who can spoof or inject crafted SNMP responses on the same network segment as a CUPS host can trigger the read and potentially leak heap contents from the printing daemon. No active exploitation has been identified, and the adjacent-network attack vector significantly limits the exposure surface.
Symlink-following race condition in GLib2's g_file_replace() allows a local attacker with write access to the destination directory to redirect privileged file writes to arbitrary files. When the G_FILE_CREATE_REPLACE_DESTINATION flag is set and creation of the .goutputstream-XXXXXX temporary file fails, GLib2 unlinks the destination and then recreates it without O_EXCL (exclusive creation) or symlink-safe open semantics, opening a TOCTOU race window. An attacker who wins this race by placing a symlink at the destination path can cause any process using this code path - potentially running with elevated privileges - to overwrite files the attacker cannot directly modify. No public exploit has been identified at time of analysis.
Flatpak's `org.freedesktop.Flatpak.SystemHelper` D-Bus service contains a TOCTOU race condition in the `Deploy()` function where a privileged `chmod` executes before OSTree repository validation completes, allowing a local low-privileged attacker to redirect symlinks to arbitrary system files within that timing window. A successful exploit can yield high-confidentiality impact (reading privileged files) and limited integrity and availability impact (CVSS C:H/I:L/A:L), as the unguarded chmod can be inherited by attacker-controlled symlink targets. No public exploit code or CISA KEV listing has been identified at time of analysis, and the High attack complexity (AC:H) reflects the precision timing required to win the race.
Heap out-of-bounds read in libtpms during TPM 2.0 state restoration allows an adjacent unauthenticated attacker to crash the swtpm process and deny TPM services to dependent virtual machines. The flaw arises in the state-blob parser: an attacker-controlled oversized skip-block length drives the internal INT32 size counter negative; subsequent bounds checks cast that counter to UINT32, wrapping it to a large positive value and bypassing the check, which then drives the parser to read memory outside the heap buffer. Vendor and upstream commit confirm the impact is denial of service only - no data corruption or information disclosure was confirmed. No public exploit or CISA KEV listing has been identified.
HTTP/2 flow-control window mismanagement in libsoup (GNOME's HTTP client/server library) allows a malicious HTTP/2 server to abort a connecting client process or crash its HTTP/2 session. When the client sends a request body sourced from a non-pollable GInputStream, libsoup buffers the data before transmission; a server that then shrinks SETTINGS_INITIAL_WINDOW_SIZE causes the client to copy the full pre-buffered payload into a now-undersized DATA callback without a runtime bounds check, triggering a reachable assertion abort (CWE-617). No public exploit has been identified at time of analysis, and the high-complexity timing requirement constrains practical exploitation.
Integer overflow in Corosync's membership commit token processing crashes the daemon on 32-bit cluster nodes, enabling a denial-of-service attack from any adjacent network host. The CWE-190 flaw causes the length validation to be bypassed on 32-bit systems where arithmetic wraps before the bounds check is applied, resulting in an out-of-bounds memory access that kills the Corosync process. Modern 64-bit deployments of the same packages are explicitly not affected, substantially narrowing real-world exposure despite the CVSS 6.5 rating; no public exploit code or CISA KEV listing exists at time of analysis.
Key-ID (kid) bypass in the jwcrypto Python JOSE library allows an attacker who holds any valid key within a JWK set to forge a General JSON Serialization JWS that satisfies verification for a different kid, effectively impersonating another tenant, user, or service. Affected deployments include Red Hat Ansible Automation Platform 2, RHEL 7-10, Red Hat OpenShift AI (RHOAI), and Red Hat OpenStack Platform 16.2, wherever jwcrypto performs JWS signature verification with kid-based authorization. No public exploit or CISA KEV listing has been identified at time of analysis, and the EPSS score is not provided, but the integrity impact is high for multi-tenant architectures.
Stack exhaustion in gfs2-utils's metawalk.c metadata walk code allows a local attacker to cause denial of service by supplying a crafted GFS2 filesystem image containing a maliciously large inode height value that drives unbounded alloca() calls. Affected systems include Red Hat Enterprise Linux 7, 8, and 9 with gfs2-utils installed; the CVSS 4.7 medium rating reflects a local, high-complexity, user-interaction-required attack path with no confidentiality or integrity impact. No public exploit code or active exploitation has been identified at time of analysis.
Heap out-of-bounds read in gfs2-utils enables memory disclosure and potential crashes when parsing crafted GFS2 filesystem images. The `ea_num_ptrs` field embedded in on-disk extended attribute metadata is consumed without validating it against the available buffer boundary, allowing an attacker who controls a filesystem image to trigger a heap over-read. Affected across Red Hat Enterprise Linux 7, 8, and 9; no public exploit is identified at time of analysis, and the local, user-interaction-dependent attack vector substantially limits practical exploitation.
Denial of service in Red Hat / 389 Directory Server (389-ds-base, versions since ~1.3.2/2013) allows an authenticated LDAP client to crash the server by sending an oversized UNBIND packet over a SASL integrity-protected connection. The oversized data overflows a fixed 512-byte heap receive buffer in sasl_io_recv() (sasl_io.c), and in FreeIPA / Red Hat IdM any domain user, enrolled host, or service account with a valid Kerberos ticket can trigger it after GSSAPI authentication. There is no public exploit identified at time of analysis, and this flaw is distinct from the earlier CVE-2025-14905 schema.c overflow, which did not fix this code path.
Privilege escalation to root and Kerberos-based authentication bypass in SSSD's Active Directory GPO provider affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. Because ad_gpo_extract_smb_components() fails to sanitize '..' sequences in the gPCFileSysPath LDAP attribute (CWE-23), an actor holding AD GPO management rights can force an SSSD-enrolled host to write attacker-controlled files outside the GPO cache as root, injecting Kerberos configuration to bypass authentication. There is no public exploit identified at time of analysis, and the flaw is not listed in CISA KEV.
Local-to-domain-wide root privilege escalation in SSSD's LDAP sudo provider allows an authenticated LDAP directory user with write access to any subtree to inject a malicious sudoRole object and gain root-level sudo on every SSSD-enrolled host. The flaw exists because, when ldap_sudo_search_base is left unset, SSSD searches the entire directory tree for sudoRole objects, trusting rules planted anywhere in the DIT. Rated CVSS 8.8 by Red Hat and reported against RHEL 6 through 10 and OpenShift Container Platform 4; no public exploit identified at time of analysis and it is not listed in CISA KEV.
Heap memory corruption in GIMP's PSD (Photoshop) file parser allows a malicious .psd image to overflow an integer in read_RLE_channel(), producing an undersized heap allocation for the RLE row-length table that is then overwritten row-by-row, potentially yielding denial of service or arbitrary code execution. The flaw affects GIMP as shipped across Red Hat Enterprise Linux 6 through 9 and is triggered when a victim opens or imports a crafted PSD file. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.
Stack-based memory corruption in GIMP's PNM image parser lets an attacker execute code or crash the application when a victim opens a malicious PNM/PBM/PGM/PPM file. The flaw is an off-by-one in pnmscanner_gettoken() that writes a null terminator one byte past a stack buffer; it is local and requires the user to open the crafted file (UI:R). No public exploit is identified at time of analysis, and EPSS is low (0.12%), consistent with the CISA SSVC 'Exploitation: none' judgment.
Heap-based buffer overflow in GIMP's Paint Shop Pro (PSP) image format parser lets an attacker achieve arbitrary code execution or crash the application when a victim opens a maliciously crafted PSP file. The flaw stems from incorrect buffer-size arithmetic on low bit-depth images, and affects GIMP as shipped across Red Hat Enterprise Linux 6 through 9. There is no public exploit identified at time of analysis, and the issue is not listed in CISA KEV; exploitation requires local file-open interaction (CVSS 7.3).
Remote code execution and privilege escalation in HPLIP (HP Linux Imaging and Printing) affects the hpcups print filter across Red Hat Enterprise Linux 6 through 10, where an integer overflow triggered by specially crafted print data can corrupt memory. This is an incomplete-fix follow-up to CVE-2026-8631, meaning the original patch did not fully close the flaw, and no public exploit has been identified at time of analysis. The Red Hat CVSS of 9.8 reflects a network-reachable, unauthenticated attack path, though realistic exploitation depends on how the CUPS print pipeline is exposed.
Denial of service in libarchive's RAR5 reader allows remote attackers to crash applications that decompress untrusted RAR5 archives via a double-free (CWE-415) of the stale filtered_buf pointer. Reported by Red Hat and affecting libarchive as shipped across Red Hat Enterprise Linux 6 through 10, OpenShift Container Platform 4, and Red Hat Hardened Images, the flaw is triggered purely by parsing a malicious archive entry. No public exploit has been identified and the issue is not in CISA KEV; impact is limited to availability (CVSS 7.5, A:H only) with no code execution or data exposure claimed.
Local privilege escalation in the cifs-utils cifs.upcall helper allows low-privileged Linux users to gain root by abusing the kernel request_key interface to load a malicious NSS module inside an attacker-controlled mount namespace. The root-owned helper fails to drop privileges before performing user-name resolution, so the attacker's NSS module executes with full root capabilities. No public exploit identified at time of analysis, but the bug affects every supported Red Hat Enterprise Linux release (6 through 10) and OpenShift Container Platform 4, making it a high-priority hardening fix for any host with CIFS/SMB client functionality.
Heap buffer overflow in GNOME localsearch (formerly tracker-miners) tracker-extract-mp3 component on Red Hat Enterprise Linux 8/9/10, Ubuntu, Debian, and SUSE allows remote attackers to trigger an out-of-bounds heap read by delivering a malformed MP3 file with crafted ID3 performer tags, leading to crashes (DoS) or disclosure of process memory contents. No public exploit identified at time of analysis, and the EPSS score of 0.19% (9th percentile) plus CISA SSVC 'Exploitation: none' indicate low real-world exploitation activity despite the 8.1 CVSS rating. Vendor patches are available across Red Hat (RHSA), Ubuntu USN-8019-1, Debian, and SUSE-SU-2026:0780/21854.
Out-of-bounds read in GStreamer's VMnc decoder allows remote attackers to crash the application or disclose memory contents when a victim opens a maliciously crafted VMnc video file. The flaw stems from a signed integer overflow in payload-size arithmetic that bypasses a length check when cursor dimensions are abnormally large. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Heap buffer overflow in GStreamer's librfb (RFB/VNC client) allows a malicious VNC server to corrupt heap memory on a connecting client, potentially leading to remote code execution or denial of service. The flaw stems from validating rectangle area instead of individual dimensions, letting attacker-controlled rectangles extend beyond the framebuffer. No public exploit identified at time of analysis, though the issue affects GStreamer as shipped across Red Hat Enterprise Linux 6 through 10.
Out-of-bounds read and denial-of-service in GStreamer's RealMedia demuxer (gst-plugins-ugly) allows remote attackers to crash, hang, or potentially leak limited adjacent memory when a victim opens a maliciously crafted RealMedia (.rm) file. The flaw stems from unvalidated offsets in re_skip_pascal_string() and an attacker-controlled loop counter in the FILEINFO metadata parser. No public exploit identified at time of analysis, and the CVE is not on the CISA KEV list.
Out-of-bounds read in the GStreamer RealMedia demuxer (gst-plugins-ugly) allows a maliciously crafted .rm file to crash the consuming application and potentially leak small amounts of adjacent heap memory through stream metadata. The flaw affects Red Hat Enterprise Linux 7, 8, 9, and 10 systems shipping the vulnerable demuxer, and exploitation requires a user to open or otherwise process the file (UI:R). There is no public exploit identified at time of analysis, and the issue is not on the CISA KEV list.
Heap memory corruption in the WavPack audio decoder of GStreamer's gst-plugins-good package allows remote attackers to crash applications or potentially achieve arbitrary code execution when a victim opens a malicious WavPack (.wv) audio file. The flaw, tracked as CVE-2026-53705 and reported by Red Hat, affects Red Hat Enterprise Linux versions 7, 8, 9, and 10, and stems from an integer overflow during buffer size calculation that produces an undersized heap allocation later overrun by decoded samples. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV, but the multimedia decoder attack surface combined with RCE potential makes it a meaningful patching priority.
Out-of-bounds read in the VA JPEG decoder shipped in GStreamer's gst-plugins-bad allows a remote attacker to crash the decoder or potentially leak adjacent memory contents when a victim opens a maliciously crafted JPEG file. The flaw stems from the JPEG parser trusting a segment-length value from the bitstream without verifying it fits within the buffer, and affects Red Hat Enterprise Linux 6 through 10 where the plugin is consumed. There is no public exploit identified at time of analysis and the issue is not in CISA KEV.
Local privilege escalation via arbitrary root-owned file overwrite affects libreport's ABRT post-create event handler scripts on Red Hat Enterprise Linux 6, 7, and 8. The event scripts write output using shell redirections that lack the O_NOFOLLOW flag, so a local low-privileged user who plants a symlink in a writable crash-dump path can cause the root shell to follow it and clobber any file on the system, which can be leveraged for full system compromise. SSVC rates technical impact as total, but there is no public exploit identified at time of analysis and EPSS is negligible (0.02%, 5th percentile).
Local privilege escalation in the abrt-dbus D-Bus service on Red Hat Enterprise Linux 6, 7, and 8 allows a low-privileged local user to race the ChownProblemDir method against still-running post-create event handlers. By invoking ChownProblemDir while privileged event scripts hold a write lock on the dump directory, the attacker gains filesystem ownership of files being written by root-context handlers, enabling tampering with privileged output and potential privilege escalation. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Local privilege escalation in the abrt-dbus D-Bus service on Red Hat Enterprise Linux 6, 7, and 8 allows any unprivileged local user to win a TOCTOU race against the SetElement method, writing arbitrary text files into root-owned dump directories. By exploiting the gap between dump directory creation and post-create event execution, an attacker bypasses package validation and persists crash data for unpackaged binaries inside privileged paths, with no public exploit identified at time of analysis.
Heap buffer overflow in 389 Directory Server (389-ds-base) SASL I/O layer allows authenticated remote attackers to crash the LDAP service or achieve remote code execution after a successful SASL bind with integrity protection (SSF > 0). The flaw stems from an integer overflow in sasl_io_start_packet() that bypasses the nsslapd-maxsasliosize ceiling, enabling roughly 2 MB of attacker-controlled heap corruption. No public exploit identified at time of analysis, and the impact is amplified in FreeIPA and Red Hat Identity Management deployments where any enrolled user, host, or service principal qualifies as an authenticated attacker.
Root command injection in dracut's legacy DHCP path allows adjacent-network attackers to execute arbitrary commands inside the initramfs by sending crafted DHCP options (e.g., malicious hostname) that are written unescaped into temporary shell scripts. The flaw affects Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4, granting full system compromise during early boot. No public exploit identified at time of analysis, and EPSS is low (0.16%, 36th percentile), but SSVC rates technical impact as total.
Remote denial of service in 389 Directory Server (Red Hat Directory Server 11/12/13 and Red Hat Enterprise Linux 6 through 10) allows unauthenticated network attackers to crash the LDAP daemon by exploiting an unchecked BER structure allocation in the dereference control plugin when the host is under memory pressure. No public exploit identified at time of analysis, and EPSS exploitation probability is very low (0.09%, 25th percentile), but the unauthenticated network-reachable nature warrants prompt patching of internet-facing or business-critical directory services.
Out-of-bounds heap write in X.Org X server and Xwayland DRI2 buffer handling allows a local authenticated client to corrupt server memory by requesting multiple DRI2BufferBackLeft attachments alongside one DRI2BufferFrontLeft. Successful exploitation crashes the display server or, when the X server runs setuid root (a still-common legacy deployment), enables local privilege escalation to root. No public exploit is identified at time of analysis and the issue is not listed in CISA KEV.
Local privilege escalation in the X.Org X server and Xwayland arises from a use-after-free in SyncChangeCounter() that a local authenticated attacker can trigger by orchestrating two client connections - one creating multiple SyncCounters, the other destroying them while they are being changed. On systems where the X server still runs as root (common on legacy Linux setups), successful exploitation yields root code execution; at minimum it crashes the display server. No public exploit identified at time of analysis, but the bug is confirmed by Red Hat and a fix has landed upstream in xserver.
Local privilege escalation in the X.Org X server and Xwayland arises from a use-after-free in FreeCounter() when SyncCounter objects are destroyed across multiple client connections. Authenticated local attackers on affected Red Hat Enterprise Linux 6 through 10 systems can crash the server or escalate to root when the X server runs with elevated privileges. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Local privilege escalation in X.Org X server and Xwayland stems from an incomplete fix for CVE-2025-26597, where CheckKeyTypes() fails to clamp non-canonical key types to XkbMaxShiftLevel, enabling stack-based buffer overflows. Authenticated local users on Red Hat Enterprise Linux 6 through 10 can crash the display server or, when X runs as root, escalate to root privileges. No public exploit identified at time of analysis, though the upstream commit reveals the vulnerable code path and the prior CVE-2025-26597 has known exploitation history.
Stack-based buffer overflow in X.Org X server and Xwayland's _XkbSetMapChecks() function allows local authenticated attackers to crash the server or potentially escalate privileges to root when the X server runs with elevated privileges. The flaw resides in CheckKeyTypes() writing to a fixed mapWidths[256] stack buffer at a client-controlled offset, affecting Red Hat Enterprise Linux versions 6 through 10. No public exploit identified at time of analysis, but an upstream fix has been merged into the xserver repository.
Local privilege escalation in the X.Org X server and Xwayland stems from a stack-based buffer overflow during font alias resolution, where a 256-byte server-side stack buffer is overrun by libXfont2 alias target names of up to 1023 bytes. An authenticated local attacker who can influence font alias files can crash the server or, when the X server runs as root, escalate to root privileges. No public exploit is identified at time of analysis and CVSS is 7.8 (Local/Low complexity/Low privileges).
Local privilege escalation in X.Org X server and Xwayland enables authenticated local users to trigger a use-after-free in miSyncDestroyFence() by racing two client connections against a shared fence object. Successful exploitation can crash the display server or escalate privileges to root when the X server runs as root, which remains common on legacy and embedded Linux deployments. No public exploit identified at time of analysis, but an upstream fix has been committed by the X.Org maintainers.
Local privilege escalation in libinput affects Red Hat Enterprise Linux 7, 8, 9, and 10 by allowing a local attacker with access to /dev/uinput to inject arbitrary udev properties via the libinput-device-group helper. Exploitation can result in root code execution through abuse of udev REMOVE_CMD properties that are run when a device is removed, mapping to CWE-78 (OS Command Injection). No public exploit identified at time of analysis, but the issue is vendor-confirmed by Red Hat.
Stack-based buffer overflow in rrdcached (the caching daemon for rrdtool) allows a local attacker with socket access to crash the daemon or potentially execute arbitrary code by sending an oversized CREATE request. The flaw is tracked under CWE-121 with a CVSS 3.1 base score of 7.8 (AV:L/AC:L/PR:L), reported by Red Hat against RHEL 6 through 10, and there is no public exploit identified at time of analysis.
Local code execution in Poppler's Splash rendering backend allows attackers to compromise applications that open attacker-supplied PDFs by triggering an integer overflow in tilingPatternFill that produces an undersized heap allocation and a subsequent out-of-bounds write. The flaw affects Poppler as shipped across Red Hat Enterprise Linux 6 through 10 and Red Hat Hardened Images, with impact including arbitrary code execution, information disclosure, or denial of service in the rendering process. No public exploit identified at time of analysis, and the CVSS 7.8 vector requires user interaction to open a malicious PDF.
Command injection in the rpmuncompress utility of RPM allows local attackers to execute arbitrary commands when a victim extracts a maliciously crafted ZIP, 7z, or GEM archive whose top-level folder name contains shell metacharacters. The flaw affects Red Hat Enterprise Linux 6 through 10 and downstream products including OpenShift Container Platform 4, Satellite 6, Red Hat Hardened Images, and Quarkus Native Builder. No public exploit identified at time of analysis, and the issue requires user interaction with an attacker-supplied archive, but successful exploitation yields full code execution under the extracting user's identity.
Certificate validation bypass in GnuTLS (as shipped in Red Hat Enterprise Linux 6 through 10, OpenShift Container Platform 4, and Red Hat Hardened Images) lets a remote attacker defeat hostname verification: when a certificate carries an oversized Subject Alternative Name, the library incorrectly abandons SAN matching and falls back to the legacy Common Name field, accepting certificates it should reject. An attacker positioned to intercept traffic can present such a certificate to impersonate a trusted server and conduct spoofing or man-in-the-middle attacks against TLS clients that rely on GnuTLS. There is no public exploit identified at time of analysis, no CISA KEV listing, and no EPSS score in the provided data.
Improper certificate validation in GnuTLS (CWE-295) lets a remote attacker defeat TLS hostname verification by presenting a certificate that carries URI or SRV Subject Alternative Names, causing GnuTLS to incorrectly fall back to matching the connection's DNS hostname against the certificate's Common Name (CN) and enabling service spoofing or man-in-the-middle interception of sensitive data. The flaw was reported by Red Hat against GnuTLS as shipped in Red Hat Enterprise Linux 6 through 10, OpenShift Container Platform 4, and Red Hat Hardened Images, and carries a CVSS 3.1 base score of 7.1 driven by high integrity impact. No public exploit has been identified at time of analysis and the issue is not listed in CISA KEV; exploitation requires the victim to initiate a connection to attacker-controlled infrastructure (UI:R).
Information disclosure and denial of service in GnuTLS (libgnutls) let a remote, unauthenticated attacker trigger a heap overread against TLS servers that perform legacy RSA key exchange using a private key backed by a PKCS#11 token. By sending an abnormally short premaster secret, the attacker causes the library to read beyond an allocated buffer (CWE-1284), which can leak a small amount of adjacent heap memory and, per the CVSS vector, more strongly impacts availability (A:H). No public exploit has been identified at time of analysis and the issue is not in CISA KEV; EPSS and SSVC data were not provided.
Heap buffer overflow in libsolv allows local attackers to corrupt memory when a vulnerable application processes a maliciously crafted .solv repository metadata file. The flaw stems from insufficient input validation during decompression of attacker-controlled data, enabling information disclosure, control-flow alteration, or denial of service across multiple Red Hat Enterprise Linux releases and SUSE distributions. SSVC marks exploitation as PoC-level with total technical impact, while EPSS remains very low at 0.01%, indicating limited probability of widespread exploitation despite high severity.
Remote code execution in Samba's printing subsystem allows remote attackers to inject arbitrary shell commands via crafted print job descriptions. The flaw stems from unescaped expansion of the client-controlled '%J' substitution token into the configured 'print command', enabling shell metacharacter injection. No public exploit has been identified at time of analysis, and EPSS scores exploitation probability at only 0.08%, but CVSS 9.0 with scope change reflects high potential impact on any Samba host exposing print services.
Remote code execution in Cockpit's system logs UI allows authenticated users to inject shell metacharacters into unsanitized URL parameters, executing arbitrary commands on RHEL 7/8/9/10 hosts. Attack requires low-complexity exploitation by a logged-in user who can craft malicious links targeting the logs interface. No public exploit identified at time of analysis, though the vulnerable code section is publicly accessible on GitHub. EPSS data not available; CVSS 8.0 reflects high impact across confidentiality, integrity, and availability if user interaction occurs.
Certificate validation in GnuTLS can be bypassed when a certificate chain contains Certificate Authorities with only excluded name constraints followed by CAs with permitted name constraints. Remote attackers can exploit this flaw (CVSS 7.4, AV:N/AC:H) to present invalid certificates that pass validation, enabling man-in-the-middle attacks or service impersonation against TLS-protected communications. The vulnerability affects Red Hat Enterprise Linux versions 6-10, OpenShift Container Platform 4, and Red Hat Hardened Images. No public exploit or active exploitation confirmed at time of analysis, though the technical nature suggests targeted attacks against high-value certificate infrastructure are feasible.
Heap buffer overflow in GnuTLS DTLS handshake allows remote unauthenticated attackers to crash applications or corrupt memory. The vulnerability stems from inconsistent fragment validation in merge_handshake_packet(), where attackers can send crafted DTLS fragments with conflicting message_length values to trigger out-of-bounds writes. Red Hat reported this affecting RHEL 6-10 and OpenShift Container Platform 4. CVSS 7.5 (High) reflects network-accessible denial of service, though memory corruption may enable further exploitation. No EPSS data, KEV status, or POC availability reported at time of analysis, but the remote unauthenticated attack vector (AV:N/PR:N) and low complexity (AC:L) make this a priority for systems using DTLS.
Out-of-bounds read in the GnuTLS DTLS handshake reassembly logic lets remote unauthenticated attackers trigger an integer underflow by sending malformed handshake fragments with zero length and a non-zero offset, enabling information disclosure or denial of service against Red Hat-shipped GnuTLS (RHEL 6 through 10, OpenShift Container Platform 4, and Red Hat Hardened Images). Reported by Red Hat with a vendor patch available and errata released; no public exploit identified at time of analysis, and EPSS is very low (0.04%, 11th percentile) with SSVC exploitation status 'none'. CVSS 9.1 reflects high confidentiality and availability impact over the network at low complexity without authentication.
Certificate name-constraints bypass in GnuTLS allows a remote attacker to craft a leaf certificate whose Subject Alternative Name differs only in letter casing from a constrained dNSName or rfc822Name, causing GnuTLS to accept a certificate that its excludedSubtrees/permittedSubtrees policy should reject. The flaw stems from case-sensitive comparison of name-constraint labels and enables unauthorized access, impersonation, or information disclosure across software (notably Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4) that relies on GnuTLS for X.509 validation. SSVC notes a public proof-of-concept exists, though EPSS exploitation probability is very low (0.03%, 9th percentile) and the issue is not in CISA KEV.
Denial of service in libxml2 allows a remote attacker to crash any application that uses the library to XSD-validate an attacker-supplied XML document containing an internal entity reference. The flaw is a CWE-843 type confusion triggered during schema validation, affecting a wide range of Red Hat products that ship libxml2. No public exploit identified at time of analysis, and EPSS is very low (0.01%, 3rd percentile), consistent with SSVC exploitation status of 'none'.
Out-of-bounds memory read in the X.Org X server's XKB key types request handling allows a local, authenticated client to disclose adjacent server memory or crash the server (DoS), with higher-impact outcomes possible in certain configurations. The flaw affects the X server component shipped across Red Hat Enterprise Linux 6 through 10 and corresponding SUSE releases, and stems from missing bounds validation on an XKB request. There is no public exploit identified at time of analysis, EPSS is negligible (0.01%), and CISA/SSVC records no known exploitation.
Local privilege-relevant memory corruption in the X.Org X server arises from a use-after-free in the XSYNC fence-triggering path (miSyncTriggerFence()), letting any client with a connection to the display crash the server or corrupt heap memory without user interaction. Rated CVSS 7.8 with total technical impact per CISA SSVC, it currently shows no public exploit identified at time of analysis, no CISA KEV listing, and a very low EPSS of 0.01% (3rd percentile). Because the X server frequently runs with elevated privileges, successful memory corruption could escalate beyond denial of service.
Memory-disclosure and denial-of-service in the X.Org X server arises from an integer underflow (CWE-191) in the XKB compatibility map handling, which lets a client with local or remote X11 access trigger an out-of-bounds buffer read. Any attacker able to open a connection to the display server can crash it or read adjacent server memory, with Red Hat and SUSE rating the technical impact as total; no public exploit identified at time of analysis and EPSS is negligible (0.01%, 2nd percentile). This was reported by Red Hat and affects the X server shipped across Red Hat Enterprise Linux 6 through 10.
Heap buffer overflow in GNU Binutils XCOFF linker allows arbitrary code execution when a local user processes a malicious object file. Red Hat Enterprise Linux versions 6 through 10 are confirmed affected via CPE data. CVSS 7.8 reflects local attack vector requiring user interaction (opening/linking the crafted file). No active exploitation confirmed (not in CISA KEV), and no public proof-of-concept identified at time of analysis. Real-world risk depends heavily on whether development workflows involve linking untrusted XCOFF files, which is uncommon outside AIX/PowerPC cross-compilation scenarios.
Out-of-bounds write in dnsmasq's DHCP split-relay handler allows remote unauthenticated denial of service via crafted BOOTREPLY packets. Affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4 when dnsmasq runs with the --dhcp-split-relay option enabled. CVSS 7.5 (AV:N/AC:L/PR:N/UI:N) indicates trivial network exploitation, but real-world risk is mitigated by the non-default configuration requirement. No public exploit or active exploitation (CISA KEV) confirmed at time of analysis, though CWE-787 (out-of-bounds write) primitives are well-understood by attackers.
Buffer overflow in GIMP's GIF image loading component allows arbitrary code execution when a victim opens a specially crafted GIF file. This local‑attack vulnerability (CVSS 3.1: AV:L/PR:N/UI:R) can lead to full compromise of the user's session. No public exploit has been identified, and EPSS exploitation probability is very low (0.01 %).
Remote unauthenticated attackers can crash GnuTLS servers by sending malformed TLS handshake messages containing invalid Pre-Shared Key binder values, triggering a NULL pointer dereference. Red Hat Enterprise Linux versions 6-10, OpenShift Container Platform 4, and Red Hat Hardened Images are affected. Vendor patches are available. EPSS score of 0.08% (24th percentile) suggests low current exploitation probability despite network-accessible attack vector. SSVC framework classifies this as automatable with partial technical impact but no known exploitation, making this a medium-priority patching target focused on preventing service disruption rather than data breach.
Local privilege escalation in libcap's cap_set_file() function affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4, where a TOCTOU race condition allows an unprivileged user with write access to a parent directory to redirect file capability updates onto an attacker-controlled file. Successful exploitation can inject or strip Linux file capabilities on arbitrary executables, yielding full privilege escalation on the host. No public exploit identified at time of analysis and EPSS is 0.01%, but a vendor patch is available.
Remote code execution in Cockpit's web interface allows unauthenticated attackers to execute arbitrary commands on the host system by injecting malicious SSH options through the login endpoint. Affecting Red Hat Enterprise Linux versions 7 through 10, this critical pre-authentication vulnerability (CVSS 9.8) requires no credentials and executes code before any authentication checks occur. EPSS data not available; no confirmed active exploitation (CISA KEV) at time of analysis, though the pre-authentication nature and command injection vector present severe risk for internet-exposed Cockpit instances.
Remote denial of service via integer overflow in Corosync cluster engine affects Red Hat Enterprise Linux 7-10 and OpenShift Container Platform 4. Unauthenticated attackers can send crafted UDP packets to crash Corosync services running in totemudp/totemudpu mode (CVSS 7.5, AV:N/PR:N). EPSS data not provided; no public exploit identified at time of analysis. Impacts high-availability cluster deployments where Corosync provides quorum and messaging services.
Out-of-bounds read in Corosync allows unauthenticated remote attackers to crash cluster nodes and potentially leak memory via malformed UDP packets. Affects default totemudp/totemudpu configurations across Red Hat Enterprise Linux 7/8/9/10 and OpenShift Container Platform 4. CVSS 8.2 (High) with network attack vector, low complexity, and no authentication required. EPSS and exploitation status data not available; no public exploit identified at time of analysis. Impacts high-availability clustering infrastructure commonly used in enterprise production environments.
Heap-based buffer overflow in gdk-pixbuf's JPEG image loader enables remote denial of service through malformed JPEG images without user interaction. The vulnerability triggers during automated image processing operations like thumbnail generation across Red Hat Enterprise Linux 6 through 10, allowing unauthenticated network attackers to crash applications that process JPEG images. EPSS score of 0.09% (25th percentile) suggests low observed exploitation activity, consistent with SSVC assessment showing no active exploitation despite the vulnerability being fully automatable.
Remote code execution in libarchive on 32-bit systems allows unauthenticated attackers to execute arbitrary code via specially crafted ISO9660 images. The vulnerability affects Red Hat Enterprise Linux versions 6 through 10 and OpenShift Container Platform 4, with vendor patches released across multiple RHSA advisories. Despite the CVSS 7.5 score and network attack vector, EPSS exploitation probability is low (0.05%, 16th percentile) and no public exploit is identified at time of analysis, though SSVC classifies the vulnerability as automatable with total technical impact.
HTTP request smuggling in Undertow (the embedded web server underpinning JBoss EAP, Red Hat Data Grid, and Apache Camel for Spring Boot) allows remote unauthenticated attackers to bypass front-end security controls by prepending whitespace to header lines. Undertow strips leading spaces from the first header line in violation of RFC 7230, creating a parser discrepancy between upstream proxies and the application server. No public exploit identified at time of analysis, and EPSS sits at 0.13% (32nd percentile), but the CVSS 9.1 and broad Red Hat middleware exposure make this a high-value target for chained attacks.
HTTP request smuggling in Undertow allows remote unauthenticated attackers to send `\r\r\r` as a header block terminator, which can desynchronize parsing when Undertow sits behind specific intermediaries such as older Apache Traffic Server or Google Cloud Classic Application Load Balancer. The flaw affects numerous Red Hat distributions of Undertow (JBoss EAP 7/8, Data Grid 8, Fuse 7, Camel for Spring Boot 4, RHEL 8/9/10) and carries a CVSS 9.1, though EPSS is only 0.04% and there is no public exploit identified at time of analysis.
HTTP request smuggling in Red Hat Undertow allows remote unauthenticated attackers to bypass front-end security controls by exploiting parsing discrepancies between Undertow and upstream proxies when handling crafted header names. The flaw (CWE-444) affects Undertow embedded in multiple Red Hat products including JBoss EAP 7/8, Data Grid 8, Fuse 7, and Apache Camel for Spring Boot 4, with Red Hat issuing patches via RHSA-2026:25125 and RHSA-2026:25126. There is no public exploit identified at time of analysis and EPSS is low (0.10%), but CVSS 9.1 and SSVC 'total' technical impact warrant prompt patching of internet-facing deployments.
Remote denial-of-service in libssh 0.11.x and earlier allows unauthenticated attackers to crash SSH server daemon processes via malformed GSSAPI authentication OID payloads. The vulnerability affects the ssh_get_hexa() API function when processing zero-length input, exploitable remotely when GSSAPI authentication is enabled and logging verbosity is set to SSH_LOG_PATCH (level 3) or higher. Red Hat, Ubuntu, SUSE, and Debian have released patches (libssh 0.11.4 and 0.12.0). EPSS score of 0.09% and SSVC assessment indicate low real-world exploitation likelihood despite network attack vector, with no active exploitation confirmed. Ubuntu classified this as low priority, and CISA SSVC notes exploitation as 'none' but 'automatable' with partial impact.
Denial of service in p11-kit's PKCS#11 RPC client allows a malicious remote token to trigger a NULL pointer dereference or undefined behavior in applications consuming derive-key operations. The flaw is reachable when an application calls C_DeriveKey against a remote token using IBM Kyber or IBM BTC derive mechanisms whose parameters are NULL, with the RPC client returning an uninitialized value. EPSS is low (0.10%) and no public exploit identified at time of analysis; SSVC marks exploitation as none but automatable.
Heap buffer over-read in GIMP's PCX image loader allows a remote attacker who can convince a user to open a crafted PCX file to disclose adjacent heap memory and crash the application. The flaw stems from an off-by-one error (CWE-193) and is tracked across Red Hat Enterprise Linux 6 through 9. No public exploit identified at time of analysis and EPSS is very low (0.06%, 19th percentile), with CISA SSVC rating exploitation as 'none'.
A signed integer overflow vulnerability exists in the libtiff library's putcontig8bitYCbCr44tile function that leads to out-of-bounds heap writes through incorrect memory pointer calculations. Red Hat Enterprise Linux versions 6, 7, 8, 9, and 10 are confirmed affected. An attacker can exploit this by tricking a user into opening a specially crafted TIFF file, potentially achieving arbitrary code execution or causing application crashes.
Heap memory disclosure in libarchive allows remote unauthenticated attackers to read sensitive heap data by submitting a malformed RAR archive. The flaw affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4, with vendor patches available per multiple RHSA advisories (RHSA-2026:8492 through RHSA-2026:8908). Despite the HIGH CVSS score of 7.5 and network-exploitable vector requiring no authentication, the EPSS score of 0.14% (35th percentile) indicates low observed exploitation probability. No public exploit code identified at time of analysis, and not listed in CISA KEV, suggesting this remains a patch-and-monitor priority rather than emergency response.
Information disclosure and denial-of-service in GNU Binutils' BFD linker (ld) arises from an out-of-bounds heap read when parsing malformed XCOFF object files. A local attacker who convinces a user to link or otherwise process a specially crafted XCOFF file can leak adjacent heap memory (CWE-125) or crash the linking process. Tracked by Red Hat across RHEL 6 through 10 and OpenShift 4; no public exploit is identified and EPSS exploitation probability is negligible (0.01%, 2nd percentile).
Out-of-bounds heap read in the BFD linker (ld) component of GNU Binutils allows information disclosure or an application-level crash when a victim is induced to process a crafted XCOFF object file. Affected across Red Hat Enterprise Linux 6 through 10 (and OpenShift Container Platform 4), exploitation requires user interaction and local file processing - there is no public exploit identified at time of analysis, and the EPSS probability is negligible (0.01%, 2nd percentile).
Infinite loop in libarchive's RAR5 decompression (archive_read_data) allows remote unauthenticated denial-of-service via malformed archive that passes checksum validation. Affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4. EPSS 0.04% (11th percentile) suggests low exploitation probability despite CVSS 7.5. Vendor patches available from Red Hat and Ubuntu. Upstream fix in libarchive PR#2877. No active exploitation confirmed (not in CISA KEV).
CPU exhaustion denial of service in jwcrypto's JWK.import_key() allows a remote unauthenticated attacker to supply a crafted JWK with an arbitrarily large key_ops array and trigger O(n²) duplicate-detection work, consuming CPU proportional to the square of the array length. Any Python application that passes externally-supplied JWK material to this API - via ECDH-ES key agreement, OIDC dynamic client registration, DPoP proof parsing, or ACME account key registration - is vulnerable. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis; CVSS rates this at 5.9 (Medium) with AC:H reflecting the requirement that attacker-controlled key material must reach the vulnerable code path.
A path-handling flaw in the containers/storage Go library lets a crafted tar archive containing a malicious whiteout entry (for example 'victim/.wh.') cause UnpackLayer, ApplyLayer, or ApplyUncompressedLayer to replace the extraction destination directory with an arbitrary file. Systems that unpack container image layers with this library — notably Red Hat Enterprise Linux 10, Red Hat Ansible Automation Platform 2, OpenShift Container Platform 4, Quay 3, OpenShift Virtualization, Dev Spaces, and Red Hat Hardened Images — are in scope. Exploitation requires the operator or process to unpack an attacker-supplied archive, and the integrity impact is confined to the local extraction target; no public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA KEV, consistent with the modest CVSS 3.1 base score of 4.4.
Let me analyze this CVE. CVE-2026-79705: buildah/copier Go package. Path traversal via malicious symlinks in crafted tar archive, escaping extraction directory, writing files outside destination. When used outside Buildah by a non-root caller. Buildah itself uses chroot hardening, not affected. CVSS 3.1: 4.5, AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N CWE-22 Path Traversal. CPE: Red Hat Ansible Automation Platform 2, Red Hat Enterprise Linux 10 (odd that RHEL 10 listed; also RHEL 8/9/10 tags). Tags: Path Traversal, RHEL 10, RHEL 8, RHEL 9, OpenShift Container Platform 4, Ansible Automation Platform 2, Quay 3, Red Hat Hardened Images, OpenShift Virtualization 4, OpenShift Dev Spaces, Red Hat. SSVC: Exploitation none, Automatable no, Technical Impact partial. No EPSS given, no KEV. No POC mentioned. Patch data missing. Product name: buildah/copier Go package — but "1-3 words ONLY". "Buildah copier" or "containers/copier"? The primary product affected in CPE is Ansible Automation Platform 2. Hmm. The vulnerable component is the buildah/copier Go package. Product name should be... "Buildah copier" maybe. Let me use "Buildah copier". Actually the go package is github.com/containers/buildah/copier. Let's say "Buildah copier" as product name. Or "copier (Buildah)". Keep 1-3 words: "Buildah copier". Prevalence: Buildah itself is widely used but this affects copier library when used outside Buildah. Red Hat Ansible Automation Platform 2 is enterprise software. Prevalence: medium? Buildah library used broadly... The affected deployments: Red Hat products. Hmm. I'd say "medium". Assessed CVSS: The described exploitation: non-root caller, crafted tar archive, malicious symlinks. Attack vector network (AV:N given, PR:H, UI:R). The score of 4.5 matches AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N = let's verify: AV:N 0.85, AC:L 0.77, PR:H 0.27, UI:R 0.62. Exploitability = 8.22 * 0.85 * 0.77 * 0.27 * 0.62 = 8.22*0.85=6.987; *0.77=5.38; *0.27=1.4526; *0.62=0.9006. Impact: ISC affected C:
A memory leak in the gss-ntlmssp NTLM target-info parser allows a malicious or man-in-the-middle NTLM server to gradually exhaust memory on the client by sending a crafted NTLM CHALLENGE message containing duplicated string-valued AV_PAIR entries. Each duplicate causes the parser to allocate a new string buffer without freeing the previous one, so repeated authentications accumulate leaked allocations and eventually degrade or crash the client, producing a denial of service. The impact is availability-only and low severity (CVSS 3.7, A:L), exploitation requires an attacker to control the NTLM challenge, and no public exploit code or CISA KEV listing was identified at time of analysis.
GNOME Shell fails to validate the declared dimensions of icons returned by a remote search provider over D-Bus against the actual icon data buffer, producing an out-of-bounds read when an oversized size is supplied. A malicious or compromised search provider registered in a user's session can crash the shell — terminating the desktop session — and may leak fragments of adjacent shell memory. Rated CVSS 6.1 (AV:L/UI:R/C:L/A:H) by Red Hat; no public exploit code or CISA KEV entry was identified at time of analysis, so exploitation currently requires a locally present hostile search provider rather than remote access.
An out-of-bounds read in the SSSD NSS responder allows any local user who can reach the responder's UNIX socket to crash the process by sending a specially crafted service lookup request, degrading local name/service resolution on the host. Only SSSD deployments shipped with Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 nodes are listed as affected by the vendor CPE data, and the flaw requires local socket access rather than network reach. There is no public exploit code and no CISA KEV listing; SSVC records exploitation as 'none' and the issue carries a modest CVSS 3.1 base score of 4.0 (availability impact only).
Denial of service in multipathd allows a local attacker with access to the UNIX control socket to permanently block the daemon's listener thread by sending valid commands and then refusing to read the replies. This renders legitimate IPC operations - such as multipath path queries and storage management commands - unable to complete until the daemon is restarted. Red Hat, the reporting source, explicitly confirms the issue is bounded to availability impact only: no privilege escalation, no code execution, and no confidentiality or integrity loss. No public exploit code has been identified at time of analysis.
Heap buffer overflow in the libtiff `tiff2pdf` utility allows local attackers to cause severe memory corruption and application crashes by supplying a crafted BigTIFF file. The root cause is an integer truncation: a 64-bit `StripByteCounts` value is silently narrowed to 32 bits, producing an undersized heap allocation that a subsequent memory copy overflows. Red Hat has issued advisory RHSA-2026:53467 and an upstream fix is available via libtiff GitLab merge request #729; no public exploit or active exploitation has been identified at time of analysis.
Symlink-following in libvirt's qemuTPMEmulatorPrepareHost() allows a local attacker with access to the swtpm service account to redirect a path-based chown() call - executed by libvirtd running as root - to transfer ownership of any arbitrary file on the system to the swtpm user. This affects libvirt on Red Hat Enterprise Linux 6 through 10. With ownership of a sensitive file such as /etc/shadow or a cron directory transferred to swtpm, the attacker gains a privilege escalation primitive beyond the swtpm account boundary. No public exploit or active exploitation has been identified at time of analysis.
Integer overflow in GStreamer's gst-plugins-good isomp4 plugin exposes adjacent heap memory when parsing CEA-608 closed-caption data embedded in specially crafted MP4 or MOV files. The 32-bit unsigned arithmetic wraparound bypasses a bounds check, enabling an out-of-bounds heap read of up to 244 bytes that is forwarded into downstream caption output - leaking process memory to an attacker who controls caption rendering output. Affected platforms include Red Hat Enterprise Linux 6 through 10; no public exploit has been identified at time of analysis, and no active exploitation is confirmed.
JavaScript injection in Evolution email client allows a remote, unauthenticated attacker to execute arbitrary JavaScript within the mail-viewing context by sending a specially crafted HTML email containing a spoofed vCard control. When the victim clicks the vCard control, Evolution's trusted JavaScript handler incorrectly places an attacker-controlled javascript: URL into an iframe's src attribute, bypassing Evolution's own script-execution protections for email content. The vulnerability is classified CWE-84 (improper neutralization of encoded URI schemes), and exploitation requires one user interaction gesture - clicking the vCard element - making it realistic against any Evolution user on a RHEL or GNOME desktop. No public exploit code or CISA KEV listing has been identified at time of analysis.
Pacemaker Configuration System (PCS) on Red Hat Enterprise Linux 8, 9, and 10 exposes an arbitrary file-read primitive to local members of the 'haclient' group via the `pcs host auth --token` command. The pcsd daemon reads the attacker-specified file path with root privileges, base64-encodes up to 256 bytes of content, and transmits it through cluster node communication channels the attacker controls - enabling exfiltration of short sensitive files such as API tokens, symmetric keys, or credential snippets that are otherwise inaccessible to the attacker. No public exploit has been identified at time of analysis, but the attack requires only local access and group membership, making it a realistic insider-privilege escalation threat in multi-tenant HA environments.
Case-insensitive username comparisons in two code paths of the CUPS scheduler - printer ACL validation and private-attribute filtering - allow an authenticated adjacent-network attacker to bypass username-based access controls in configurations that rely on those ACLs. The bypass exposes private print attributes to users who should be excluded by ACL policy. Affected deployments span Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified at time of analysis, consistent with the low CVSS base score of 3.0.
Heap out-of-bounds read in CUPS's cupsUTF32ToUTF8() transcoding function exposes partial daemon heap memory to adjacent-network attackers without authentication. The vulnerable code path is reachable via SNMP supply-description parsing, meaning any attacker who can spoof or inject crafted SNMP responses on the same network segment as a CUPS host can trigger the read and potentially leak heap contents from the printing daemon. No active exploitation has been identified, and the adjacent-network attack vector significantly limits the exposure surface.
Symlink-following race condition in GLib2's g_file_replace() allows a local attacker with write access to the destination directory to redirect privileged file writes to arbitrary files. When the G_FILE_CREATE_REPLACE_DESTINATION flag is set and creation of the .goutputstream-XXXXXX temporary file fails, GLib2 unlinks the destination and then recreates it without O_EXCL (exclusive creation) or symlink-safe open semantics, opening a TOCTOU race window. An attacker who wins this race by placing a symlink at the destination path can cause any process using this code path - potentially running with elevated privileges - to overwrite files the attacker cannot directly modify. No public exploit has been identified at time of analysis.
Flatpak's `org.freedesktop.Flatpak.SystemHelper` D-Bus service contains a TOCTOU race condition in the `Deploy()` function where a privileged `chmod` executes before OSTree repository validation completes, allowing a local low-privileged attacker to redirect symlinks to arbitrary system files within that timing window. A successful exploit can yield high-confidentiality impact (reading privileged files) and limited integrity and availability impact (CVSS C:H/I:L/A:L), as the unguarded chmod can be inherited by attacker-controlled symlink targets. No public exploit code or CISA KEV listing has been identified at time of analysis, and the High attack complexity (AC:H) reflects the precision timing required to win the race.
Heap out-of-bounds read in libtpms during TPM 2.0 state restoration allows an adjacent unauthenticated attacker to crash the swtpm process and deny TPM services to dependent virtual machines. The flaw arises in the state-blob parser: an attacker-controlled oversized skip-block length drives the internal INT32 size counter negative; subsequent bounds checks cast that counter to UINT32, wrapping it to a large positive value and bypassing the check, which then drives the parser to read memory outside the heap buffer. Vendor and upstream commit confirm the impact is denial of service only - no data corruption or information disclosure was confirmed. No public exploit or CISA KEV listing has been identified.
HTTP/2 flow-control window mismanagement in libsoup (GNOME's HTTP client/server library) allows a malicious HTTP/2 server to abort a connecting client process or crash its HTTP/2 session. When the client sends a request body sourced from a non-pollable GInputStream, libsoup buffers the data before transmission; a server that then shrinks SETTINGS_INITIAL_WINDOW_SIZE causes the client to copy the full pre-buffered payload into a now-undersized DATA callback without a runtime bounds check, triggering a reachable assertion abort (CWE-617). No public exploit has been identified at time of analysis, and the high-complexity timing requirement constrains practical exploitation.
Integer overflow in Corosync's membership commit token processing crashes the daemon on 32-bit cluster nodes, enabling a denial-of-service attack from any adjacent network host. The CWE-190 flaw causes the length validation to be bypassed on 32-bit systems where arithmetic wraps before the bounds check is applied, resulting in an out-of-bounds memory access that kills the Corosync process. Modern 64-bit deployments of the same packages are explicitly not affected, substantially narrowing real-world exposure despite the CVSS 6.5 rating; no public exploit code or CISA KEV listing exists at time of analysis.
Key-ID (kid) bypass in the jwcrypto Python JOSE library allows an attacker who holds any valid key within a JWK set to forge a General JSON Serialization JWS that satisfies verification for a different kid, effectively impersonating another tenant, user, or service. Affected deployments include Red Hat Ansible Automation Platform 2, RHEL 7-10, Red Hat OpenShift AI (RHOAI), and Red Hat OpenStack Platform 16.2, wherever jwcrypto performs JWS signature verification with kid-based authorization. No public exploit or CISA KEV listing has been identified at time of analysis, and the EPSS score is not provided, but the integrity impact is high for multi-tenant architectures.
Stack exhaustion in gfs2-utils's metawalk.c metadata walk code allows a local attacker to cause denial of service by supplying a crafted GFS2 filesystem image containing a maliciously large inode height value that drives unbounded alloca() calls. Affected systems include Red Hat Enterprise Linux 7, 8, and 9 with gfs2-utils installed; the CVSS 4.7 medium rating reflects a local, high-complexity, user-interaction-required attack path with no confidentiality or integrity impact. No public exploit code or active exploitation has been identified at time of analysis.
Heap out-of-bounds read in gfs2-utils enables memory disclosure and potential crashes when parsing crafted GFS2 filesystem images. The `ea_num_ptrs` field embedded in on-disk extended attribute metadata is consumed without validating it against the available buffer boundary, allowing an attacker who controls a filesystem image to trigger a heap over-read. Affected across Red Hat Enterprise Linux 7, 8, and 9; no public exploit is identified at time of analysis, and the local, user-interaction-dependent attack vector substantially limits practical exploitation.