Red Hat Enterprise Linux 8
Monthly
Use-after-free memory corruption in WebKitGTK exposes Red Hat Enterprise Linux 6 through 9 systems to potential arbitrary code execution when users process attacker-controlled web content. The flaw (CWE-416) stems from improper memory management in the web engine's content rendering pipeline, where a freed heap allocation is subsequently accessed, enabling heap corruption. No public exploit code or CISA KEV listing has been identified at time of analysis; operational urgency derives from the CVSS 8.8 score, the broad RHEL deployment footprint, and the well-understood exploitability of use-after-free conditions in browser engines.
FreeIPA's Kerberos Ticket Granting Service fails to verify Privilege Attribute Certificate (PAC) signatures when processing cross-realm tickets from a trusted Active Directory domain, allowing any authenticated AD user to impersonate arbitrary FreeIPA principals. This grants unauthorized elevated access to FreeIPA services including the web portal, SMB server, and LDAP directory. No active exploitation is confirmed (not in CISA KEV; SSVC Exploitation: none), though SSVC rates technical impact as total and CVSS scores 8.1 - the gap reflects the non-default trust configuration prerequisite that limits real-world exposure.
Memory exhaustion in FreeIPA's `/ipa/i18n_messages` endpoint allows a remote, unauthenticated attacker to crash identity services by sending an arbitrarily large HTTP request body. All RHEL-bundled FreeIPA deployments across RHEL 6 through RHEL 10 are affected per Red Hat CPE data. No active exploitation is confirmed (not in CISA KEV) and no public exploit code has been identified at time of analysis, but the attack requires no authentication and no special configuration, making every internet-exposed FreeIPA instance a plausible target.
Privilege escalation in FreeIPA allows an attacker with high LDAP write privileges to create a rogue service principal that impersonates a privileged existing one, bypassing the uniqueness constraint enforced by the 389-ds directory server. The flaw arises because 389-ds fails to recognize equivalent representations of the same Kerberos principal name (CWE-706), enabling the creation of a shadow principal that Kerberos treats as legitimate. If exploited, an attacker can acquire valid Kerberos service tickets for sensitive services, with full domain compromise as the realistic worst-case outcome. No public exploit exists and CISA KEV does not list this CVE, though SSVC rates the technical impact as total.
FreeIPA's migration endpoint on Red Hat Enterprise Linux 6 through 10 is exploitable by remote unauthenticated attackers who send oversized HTTP POST requests to `/ipa/migration/migration.py`, causing the server to buffer arbitrarily large request bodies fully into memory. This resource exhaustion (CWE-770) leads to degraded performance, memory pressure, and potential service disruption of the identity management service. No public exploit code has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
Local privilege escalation and denial of service in libvirt's NodeGetFreePages RPC handler allows an unprivileged local user to corrupt the root libvirtd daemon's heap memory through a crafted integer overflow. The CWE-190 flaw causes an undersized buffer allocation that is subsequently overwritten with real NUMA node data, enabling heap buffer overflow in a root-owned process. No public exploit code or CISA KEV listing exists at time of analysis, but the CVSS 7.8 score (AV:L/AC:L/PR:L) and full C/I/A impact make this a genuine priority on multi-tenant RHEL virtualization hosts.
Memory exhaustion denial of service in cockpit-ws affects Red Hat Enterprise Linux 7 through 10 and Red Hat OpenShift Dev Spaces, exploitable by any remote unauthenticated attacker. The login page request handler leaks a heap allocation on every HTTP request that includes a CockpitLang cookie, with no authentication or special privilege required. Sustained request flooding with this cookie will exhaust host memory, crashing the cockpit-ws service and potentially destabilizing the underlying host; no public exploit or active exploitation has been identified at time of analysis.
Unauthenticated remote crash of rsyslogd is possible through a flaw in the optional imptcp input module, where a crafted input sequence during oversize-frame recovery produces an invalid internal message length and terminates the logging daemon. Systems running Red Hat Enterprise Linux 6 through 10 are affected only when imptcp is explicitly loaded with a non-default frame delimiting mode; the default imptcp framing and the separate imtcp module are explicitly confirmed unaffected. No public exploit code and no CISA KEV listing have been identified at time of analysis; CVSS scores this at 7.5 High solely on the basis of network-accessible, unauthenticated availability impact.
Incorrect authorization in FreeIPA's trust-fetch-domains command allows any authenticated, non-privileged IPA user to trigger a privileged Active Directory trust refresh using an attacker-supplied server and credentials, writing attacker-controlled trusted-domain and ID-range data into the FreeIPA LDAP directory. The flaw (CWE-863) stems from the command being gated by a read-only trust object permission rather than the required trust-administration permission, effectively bypassing the authorization boundary between read and write operations on cross-realm identity data. No public exploit has been identified and CISA has not listed this in KEV, but the scope-changed CVSS score of 8.2 and high integrity impact reflect serious potential for identity infrastructure tampering in environments running AD trusts.
Code injection in the Perl DBI module as packaged for Red Hat Enterprise Linux allows a network-accessible, low-privileged attacker to execute arbitrary code, resulting in full confidentiality, integrity, and availability compromise. This CVE is a remediation of an incomplete fix for CVE-2026-14380, specifically targeting RHEL 9.8.z and 10.2.z patch levels where the prior partial fix left an exploitable residual path. No public exploit or CISA KEV listing is identified at time of analysis, but the CWE-94 classification and RCE tag indicate high potential impact if exploitation conditions are met.
Privilege escalation in the `openvt -u` utility allows a local low-privileged attacker to obtain passwordless root login on Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and Red Hat OpenShift Container Platform 4. The flaw lies in `authenticate_user()`, which resolves VT ownership via `stat("/proc/<pid>/fd/0")` - a call that follows the symlink to the underlying TTY device node rather than inspecting the owning process, causing the check to read the device node's UID rather than the process owner's UID. When a privileged user logs out and TTY device node ownership reverts to root or the getty owner while an attacker's process still holds fd 0 on that TTY, the check incorrectly authorizes a passwordless `login -f root` execution. No public exploit is identified at time of analysis and there is no CISA KEV listing, but the root-level impact makes this a high priority for environments using the affected `kbrequest`/init deployment pattern.
Privilege escalation in MRTG (Multi Router Traffic Grapher) allows a local low-privileged attacker to gain elevated file ownership on the host system. When the MRTG daemon is launched as root and then drops privileges, a CWE-59 symlink-following flaw in PID file handling lets an attacker pre-place or manipulate a symlink at the expected PID file path, causing the root process to change ownership of an arbitrary existing file to the daemon user. Affected platforms include Red Hat Enterprise Linux 6 through 10; no public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation in libvirt's `virFileChownFiles()` function allows a process confined to the `swtpm` system user to coerce the root-level libvirtd daemon into reassigning ownership of any arbitrary file on the host to the `swtpm` user. The attack exploits a symlink-following flaw (CWE-59) in directory traversal logic that runs with root privileges, affecting libvirt as packaged across Red Hat Enterprise Linux 6 through 10 and RHEL for Nvidia 26. No public exploit has been identified at time of analysis, but the attack complexity is low once `swtpm`-user execution is obtained.
Out-of-bounds write vulnerabilities in GIMP's PSD and PAA file format parsing plugins allow remote attackers to achieve code execution with the privileges of the local user by delivering a specially crafted image file. Affected deployments include GIMP packages shipped with Red Hat Enterprise Linux 6 through 9. No public exploit code has been identified at time of analysis, and CISA SSVC classifies exploitation status as none with the attack assessed as not automatable, though technical impact is rated total given the C:H/I:H/A:H CVSS profile.
Arbitrary code execution in GIMP's PSD import plugin allows an attacker to run code in the context of the user who opens a maliciously crafted .psd file. An unsigned integer underflow in the plugin's block_rem length variable (CWE-191) corrupts parsing of Photoshop layer resource blocks, letting attacker-controlled data be treated as trusted structures. Reported by Red Hat and tracked upstream in GNOME's GIMP tracker; SSVC lists a proof-of-concept, though it is not in CISA KEV and EPSS exploitation probability is low (0.31%).
Heap overflow in GIMP's Seattle Filmworks file loader allows an attacker who tricks a user into opening a specially crafted SFW file to write several kilobytes of attacker-controlled data beyond the intended buffer, resulting in memory corruption that can lead to arbitrary code execution or denial of service. Affected platforms confirmed via CPE data are Red Hat Enterprise Linux 6 through 9 with GIMP installed. No public exploit code has been identified and this CVE is not listed in CISA's KEV catalog, but the high CVSS 7.8 score reflects the full confidentiality, integrity, and availability impact achievable once a victim is socially engineered into opening the malicious file.
Integer overflow and underflow flaws in GStreamer's gst-plugins-ugly ASF demuxer expose systems to denial of service and limited heap data disclosure when processing attacker-controlled media files. The asfdemux plugin fails to adequately validate length and size fields inside ASF/WMV/WMA header objects, allowing arithmetic overflows to bypass bounds checks and trigger out-of-bounds heap reads. Any application or user that opens an untrusted media file through a GStreamer pipeline - browsers, media players, thumbnailers - is exposed; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap out-of-bounds write in GStreamer's adpcmdec element allows a crafted WAV file containing malformed multi-channel IMA/DVI ADPCM audio to corrupt application memory, cause denial of service, or potentially achieve arbitrary code execution. Affected deployments include Red Hat Enterprise Linux 7 through 10, where the vulnerable gst-plugins-bad package is distributed. No confirmed active exploitation (not in CISA KEV) and no public proof-of-concept has been identified at time of analysis, though the CVSS score of 7.6 reflects the realistic network-deliverable, user-interaction-dependent attack path.
Command injection in dracut's die() error-handling function allows an unauthenticated attacker on the adjacent network, controlling a rogue DHCP server, to execute arbitrary commands as root during initramfs boot-failure recovery. The flaw exists because error messages written into emergency hook shell scripts under the initramfs environment are not shell-quoted, and those messages can carry attacker-controlled data sourced from the DHCP ROOT_PATH option processed by the 40network module. No public exploit code or CISA KEV listing has been identified at time of analysis, but the exploitation primitive is conceptually straightforward for anyone with DHCP server control on the local network segment.
Unbounded memory growth in GStreamer's RTP H.264 and H.265 depayloader elements allows a remote unauthenticated attacker to exhaust process memory and terminate any application consuming RTP video streams. The rtph264depay and rtph265depay elements in gst-plugins-good lack an upper bound on their internal reassembly buffer, meaning an attacker who continuously sends fragmented RTP packets while withholding the end-of-fragment marker can grow that buffer without limit. No public exploit has been identified at time of analysis, and CISA KEV listing is absent, but the CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates this is trivially exploitable against any exposed GStreamer RTP pipeline.
Memory corruption in libkcapi's one-shot asynchronous I/O path allows a local process to induce kernel writes into application-owned output buffers after an error return. Affected platforms include Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and OpenShift Container Platform 4. An unprivileged local attacker or a compromised application can exploit this use-after-free-class condition to crash the calling process (high availability impact) or corrupt buffer contents for limited confidentiality and integrity impact. No public exploit code or CISA KEV listing has been identified at time of analysis.
Out-of-bounds read in SSSD's PAM responder allows a local low-privileged attacker to crash the SSSD process and disclose sensitive memory contents by sending a crafted protocol v1 authentication request. Affected systems span all major Red Hat Enterprise Linux releases (6 through 10) and OpenShift Container Platform 4, representing a broad footprint in enterprise Linux environments. No active exploitation is confirmed (not listed in CISA KEV), and the EPSS score of 0.14% at the 3rd percentile reflects a very low observed exploitation probability at time of analysis.
Heap-based buffer overflows in GIMP's APNG and DDS image loaders let an attacker corrupt heap memory - and potentially achieve code execution - when a victim opens a specially crafted image file. The APNG path is triggered when the fcTL frame width exceeds the IHDR image width, so pixel data is written past the end of a heap allocation, while the DDS path involves a bits-per-pixel mismatch inside the load_layer() function. Exploitation is local and gated by user interaction (CVSS:3.1/AV:L/AC:L/PR:N/UI:R, 7.8 High), no public exploit code has been identified at time of analysis, and EPSS is very low at 0.13% (3rd percentile); Red Hat has shipped patched packages via RHSA-2026:73768 and RHSA-2026:50817.
Denial of service in gnome-remote-desktop as shipped in Red Hat Enterprise Linux 8, 9, and 10 lets an unauthenticated remote attacker exhaust server resources when the daemon runs in system mode with RDP enabled. Because the incoming connection handler bypasses the connection throttler, an attacker can open large numbers of parallel pre-authentication RDP connections, accumulating accepted sockets and pending routing-token operations until timeout and blocking legitimate RDP logins. There is no public exploit identified at time of analysis, and the flaw is specific to Red Hat's build - it does not affect the upstream project.
Information disclosure in 389 Directory Server (upstream of Red Hat Directory Server 11-13, shipped across RHEL 6-10) lets an unauthenticated remote attacker inject LDAP search filters into the CleanAllRUV replication status-check extended operation. Because the handler evaluates attacker-controlled filters against cn=config using elevated replication-plugin privileges and leaks a boolean match result, attackers can blindly enumerate sensitive configuration metadata such as replication bind DNs and password storage scheme details. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the network-reachable, no-authentication attack surface makes it a meaningful reconnaissance primitive.
Remote unauthenticated denial of service in 389 Directory Server (389-ds-base, shipped as Red Hat Directory Server 11-13 and within RHEL 6-10) allows an attacker to crash the LDAP daemon by sending a crafted replication extended operation. The flaw is a stack buffer overflow in the RUV parsing path that triggers during payload decoding before any authorization check, so no credentials are needed. No public exploit identified at time of analysis; stack protectors constrain the outcome to a server crash rather than code execution.
Confidential Active Directory attribute disclosure in Samba's Active Directory Domain Controller allows an authenticated low-privilege domain user to read protected directory attributes by abusing how LDAP Compare requests are handled. Because Samba fails to validate user-supplied attribute names (LDAP filter injection, CWE-90) and runs the resulting internal search in a trusted context, normal ACL enforcement is bypassed; in gMSA-enabled deployments this permits extraction of msKds-RootKeyData and offline derivation of Group Managed Service Account passwords, which can escalate to full domain compromise. No public exploit identified at time of analysis and the issue is not listed in CISA KEV, but a vendor patch is available.
Remote unauthenticated denial of service in Performance Co-Pilot (PCP), the system performance monitoring toolkit shipped with Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4, allows an attacker to permanently disable a PCP daemon by triggering a signed integer overflow (CWE-190) in the __pmGetPDU() PDU-length handling routine. A crafted network packet sent during normal PDU processing or SASL authentication negotiation corrupts the read logic so that the daemon can no longer read any subsequent packets, requiring a manual restart. There is no public exploit identified at time of analysis and the flaw yields no code execution or data exposure - impact is availability-only (CVSS 7.5, A:H).
Remote unauthenticated access-control bypass in the Performance Co-Pilot (PCP) pmproxy component lets attackers reach the /store endpoint and overwrite arbitrary PMDA (Performance Metrics Domain Agent) metric values, which the reporter (Red Hat) states can escalate to arbitrary code execution and full system takeover. The flaw affects PCP as shipped across Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the network-reachable, no-authentication attack surface makes exposed pmproxy instances a meaningful risk.
Local privilege escalation in Performance Co-Pilot (PCP) on Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 arises from the linux_sockets module exposing an unsecured internal connection. An attacker who already holds low-level code execution on the host can leverage this leaked/unprotected socket to run arbitrary commands as root. No public exploit has been identified at time of analysis and the flaw is not in CISA KEV, so exploitation would require an existing foothold rather than remote unauthenticated access.
Local privilege-relevant command injection in Performance Co-Pilot's (PCP) linux_sockets PMDA lets an authenticated user inject shell metacharacters through the network.persocket.filter metric, causing arbitrary commands to run as the PMDA user each time metrics refresh. Reported by Red Hat, it affects the pcp packages shipped across Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. There is no public exploit identified at time of analysis, and the flaw is not listed in CISA KEV.
Out-of-bounds write in GNU binutils' BFD library (bfd/elf32-dlx.c) lets a crafted ELF/DLX object file corrupt memory and achieve arbitrary code execution when parsed by any BFD-consuming tool (objdump, readelf, strip, ld, nm, objcopy). Reported by Red Hat and tracked against RHEL 6-10, Hardened Images and OpenShift 4, the flaw is only reachable when binutils is compiled with the DLX backend (typically --enable-targets=all), so exposure is gated by a non-default build option. There is no public exploit identified at time of analysis (not in CISA KEV), though the researcher demonstrated code execution via a File Stream Oriented Programming (FSOP) attack on glibc FILE structures.
Privilege escalation in CRIU allows a malicious container process to spoof credentials during checkpoint, resulting in elevated capabilities upon restore. On Red Hat platforms, effective exploitation is mitigated by mandatory access controls, user namespaces, and the requirement for privileged checkpoint initiation. No public exploit identified at time of analysis.
Arbitrary command execution as root via udev property injection in sg3_utils when sg_inq --export parses a SCSI device with a crafted name string. Affects multiple Red Hat Enterprise Linux versions shipping sg3_utils. Publicly available exploit code exists as a proof-of-concept in the upstream fix; no active exploitation has been reported.
Denial of service in OpenPrinting libcupsfilters (as shipped in Red Hat Enterprise Linux 7 through 10) allows a network-adjacent attacker to pin a CPU at 100% by broadcasting a crafted printer advertisement. The flaw lies in cfIEEE1284NormalizeMakeModel(), which enters an infinite loop (CWE-835) when parsing an IEEE-1284 device ID whose model field is empty. There is no public exploit identified at time of analysis, and it is not listed in CISA KEV; impact is limited to availability with no data compromise.
Arbitrary command execution in ansible-core allows an attacker who controls a collection source URI to run commands on a victim's machine when that victim executes 'ansible-galaxy collection install' against the malicious git source. The flaw lives in _extract_collection_from_git() in concrete_artifact_manager.py, which builds git clone commands without a '--' end-of-options separator, letting crafted URIs be parsed as git arguments. It is an incomplete fix for CVE-2026-11332, which patched the analogous role-install path but left the collection-install path exposed; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.
Privilege escalation via authentication bypass in libssh affects servers that enable GSSAPIKeyExchange, where the gssapi-keyex authentication path fails to confirm that the authenticated Kerberos principal is actually authorized for the local user account being requested. An already-authenticated client holding any valid Kerberos principal in the realm can therefore log in as an arbitrary user, including potentially privileged accounts, on Red Hat Enterprise Linux 8, 9, and 10 and Red Hat Hardened Images. No public exploit is identified at time of analysis and the issue is not listed in CISA KEV, but the CVSS of 8.8 reflects a straightforward, low-complexity abuse once a valid Kerberos credential is held.
Denial of service (and potential use-after-free) in libssh occurs when the library processes SSH data packets that arrive after a channel has been closed, causing channel data callbacks to fire against already-freed memory. Any application or system linking the affected libssh - including Red Hat Enterprise Linux 8, 9, and 10 and Red Hat Hardened Images - can be crashed by a malicious SSH peer that sends channel data at the wrong point in the connection lifecycle. There is no public exploit identified at time of analysis, EPSS is low (0.26%), and CISA SSVC scores exploitation as none, indicating a real but non-urgent memory-safety fix.
Denial of service in libssh affects clients that use automatic certificate-based public key authentication, where logic errors cause the client to loop indefinitely when configured certificates are absent or are repeatedly rejected by the SSH server. Reported by Red Hat and shipped in Red Hat Enterprise Linux 8, 9, and 10 plus Red Hat Hardened Images, the flaw lets a hostile or misconfigured server hang a connecting client and consume CPU. There is no public exploit identified at time of analysis, and EPSS is low at 0.17% (7th percentile), consistent with an availability-only, client-side bug rather than a mass-exploited issue.
Integrity-protection bypass in libssh builds compiled against the OpenSSL crypto backend, caused by incorrect AES-GCM finalization checks that fail to verify the authentication tag. An in-path (man-in-the-middle) attacker positioned on an SSH session can silently alter plaintext bytes on the wire without triggering a MAC/integrity failure, defeating a core guarantee of the SSH transport layer. There is no public exploit identified at time of analysis, EPSS risk is low (0.28%, 20th percentile), and CISA SSVC rates exploitation as 'none' though 'automatable: yes'.
Denial of service in libcupsfilters and cups-filters (the OpenPrinting image-filtering stack bundled with Red Hat Enterprise Linux 7 through 10) allows an unauthenticated attacker to abort the CUPS image filter by submitting a specially crafted PNG print job. The PNG reader instantiates a libpng decoder without registering an error-recovery handler, so a malformed image triggers libpng's default fatal-error path and terminates the filter process, killing the in-flight print job. No public exploit identified at time of analysis; this is a print-job availability issue, not a code-execution or data-exposure flaw.
Local privilege escalation to root in the QEMU Guest Agent (qga) affects Red Hat Enterprise Linux 6 through 10, RHEL for NVIDIA 26, and OpenShift Container Platform 4, where a local unprivileged guest user abuses the guest-ssh-add-authorized-keys command handler through symlink manipulation to seize ownership of arbitrary root-owned files. Two attack variants exist - a deterministic directory-symlink bypass and a TOCTOU file-symlink race - both requiring an external management layer such as libvirt to invoke the code path. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the CVSS 7.3 rating and clean path to full root access make it a meaningful local escalation risk in multi-tenant virtualization estates.
Out-of-bounds heap write in the freedesktop xdgmime library (bundled with GLib-based MIME detection) allows a local attacker to crash or corrupt the memory of any application that guesses content types via g_content_type_guess(). The flaw lives in _xdg_mime_magic_parse_magic_line() in xdgmimemagic.c and triggers on little-endian systems when a maliciously crafted MIME magic file placed in a user-writable XDG data location is parsed, producing a 2-byte out-of-bounds write. Red Hat rates it 7.1 (Important); no public exploit is identified at time of analysis and it is not listed in CISA KEV.
Sandbox escape in PipeWire's PulseAudio compatibility layer lets a low-privileged process inside a confined environment such as Flatpak load an attacker-controlled library and execute arbitrary code on the host user's session. The flaw (CWE-427) is present in PipeWire as shipped in Red Hat Enterprise Linux 7, 8, 9 and 10 and carries a scope-changing CVSS 3.1 score of 8.8. There is no public exploit identified at time of analysis, and it is not listed in CISA KEV.
Denial of service in libsolv's PGP signature verification (solv_pgpvrfy) allows remote attackers to crash automated package and repository processing by supplying a crafted Ed25519 signature. The flaw is a stack-based buffer overflow (CWE-121) triggered when the EdDSA 's' MPI is copied into a fixed 64-byte stack buffer using an attacker-controlled mismatched length. It affects the libsolv dependency solver embedded in Red Hat Enterprise Linux 7/8/9/10, OpenShift, Satellite, RHUI, openSUSE/SUSE, Ubuntu and Debian; no public exploit identified at time of analysis and it is not in CISA KEV.
Out-of-bounds heap write in QEMU lets a local attacker operating inside a guest virtual machine corrupt memory in the host emulator process, enabling information disclosure, data-integrity corruption, or denial of service. The flaw stems from cpu_physical_memory_map() returning a shorter buffer length than the caller assumes, so subsequent writes spill past the allocation. Rated CVSS 7.8 (CWE-787); no public exploit identified at time of analysis, but multiple distributions (Red Hat, Ubuntu, SUSE, Debian) have shipped fixes.
Remote denial of service in libsoup, the GNOME HTTP client/server library, allows unauthenticated attackers to crash any application using libsoup's WebSocket support by sending a single malformed control frame. The parser fails to enforce RFC 6455's 125-byte limit on PING/PONG/CLOSE control frames and mishandles the oversized payload instead of cleanly closing the connection, causing an internal processing crash. Red Hat reports the flaw across RHEL 6 through 10; no public exploit has been identified at time of analysis and no EPSS score was provided.
Denial of service in libsoup's WebSocket permessage-deflate implementation lets a remote, unauthenticated attacker crash applications by sending a small, highly compressed 'decompression bomb' that expands without bound during inflation, exhausting memory and triggering an Out-of-Memory kill. All Red Hat Enterprise Linux 6 through 10 ship the affected libsoup HTTP/WebSocket library, and client connections are especially exposed because the decompressed-size guard (max_total_message_size) is disabled by default for clients. There is no public exploit identified at time of analysis and this CVE is not listed in CISA KEV.
Denial of service in GStreamer's DTLS plugin allows a remote unauthenticated attacker to crash any application that performs a DTLS handshake (notably WebRTC/webrtcbin pipelines) by presenting a TLS certificate with an oversized Subject Distinguished Name. The Subject DN is written into a fixed 2048-byte stack buffer with no bounds checking (CWE-121), and overflowing it corrupts the stack and terminates the process. There is no public exploit identified at time of analysis and it is not listed in CISA KEV; impact is limited to availability (process crash), with no code execution or data exposure claimed.
Heap buffer overflow in GStreamer's rfbsrc (RFB/VNC source) plugin lets a malicious VNC server crash or corrupt the memory of any client that connects to it. When the server advertises a 16bpp framebuffer and sends Hextile-encoded updates, the background-fill path writes 32-bit pixels into a 16-bit buffer, producing an out-of-bounds heap write. No public exploit identified at time of analysis; the primary confirmed impact is denial of service, with potential for further memory corruption. This is a client-side flaw requiring the victim to connect to attacker-controlled infrastructure.
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.
Memory corruption in GIMP's Paint Shop Pro (.psp) import parser lets an attacker crash the application or possibly execute code by persuading a victim to open a crafted PSP image file. The root cause is a double-free (CWE-415) in the read_layer_block() routine; exploitation requires local user interaction to open the file and results in per-user, client-side compromise rather than server-side or unattended exploitation. There is no public exploit identified at time of analysis, the SSVC decision framework rates exploitation as 'none' and automatable as 'no', and EPSS is low at 0.12% (2nd percentile), yet Red Hat tracks the defect across RHEL 6 through 9 and a vendor patch plus an upstream commit are available.
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.
Use-after-free memory corruption in WebKitGTK exposes Red Hat Enterprise Linux 6 through 9 systems to potential arbitrary code execution when users process attacker-controlled web content. The flaw (CWE-416) stems from improper memory management in the web engine's content rendering pipeline, where a freed heap allocation is subsequently accessed, enabling heap corruption. No public exploit code or CISA KEV listing has been identified at time of analysis; operational urgency derives from the CVSS 8.8 score, the broad RHEL deployment footprint, and the well-understood exploitability of use-after-free conditions in browser engines.
FreeIPA's Kerberos Ticket Granting Service fails to verify Privilege Attribute Certificate (PAC) signatures when processing cross-realm tickets from a trusted Active Directory domain, allowing any authenticated AD user to impersonate arbitrary FreeIPA principals. This grants unauthorized elevated access to FreeIPA services including the web portal, SMB server, and LDAP directory. No active exploitation is confirmed (not in CISA KEV; SSVC Exploitation: none), though SSVC rates technical impact as total and CVSS scores 8.1 - the gap reflects the non-default trust configuration prerequisite that limits real-world exposure.
Memory exhaustion in FreeIPA's `/ipa/i18n_messages` endpoint allows a remote, unauthenticated attacker to crash identity services by sending an arbitrarily large HTTP request body. All RHEL-bundled FreeIPA deployments across RHEL 6 through RHEL 10 are affected per Red Hat CPE data. No active exploitation is confirmed (not in CISA KEV) and no public exploit code has been identified at time of analysis, but the attack requires no authentication and no special configuration, making every internet-exposed FreeIPA instance a plausible target.
Privilege escalation in FreeIPA allows an attacker with high LDAP write privileges to create a rogue service principal that impersonates a privileged existing one, bypassing the uniqueness constraint enforced by the 389-ds directory server. The flaw arises because 389-ds fails to recognize equivalent representations of the same Kerberos principal name (CWE-706), enabling the creation of a shadow principal that Kerberos treats as legitimate. If exploited, an attacker can acquire valid Kerberos service tickets for sensitive services, with full domain compromise as the realistic worst-case outcome. No public exploit exists and CISA KEV does not list this CVE, though SSVC rates the technical impact as total.
FreeIPA's migration endpoint on Red Hat Enterprise Linux 6 through 10 is exploitable by remote unauthenticated attackers who send oversized HTTP POST requests to `/ipa/migration/migration.py`, causing the server to buffer arbitrarily large request bodies fully into memory. This resource exhaustion (CWE-770) leads to degraded performance, memory pressure, and potential service disruption of the identity management service. No public exploit code has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
Local privilege escalation and denial of service in libvirt's NodeGetFreePages RPC handler allows an unprivileged local user to corrupt the root libvirtd daemon's heap memory through a crafted integer overflow. The CWE-190 flaw causes an undersized buffer allocation that is subsequently overwritten with real NUMA node data, enabling heap buffer overflow in a root-owned process. No public exploit code or CISA KEV listing exists at time of analysis, but the CVSS 7.8 score (AV:L/AC:L/PR:L) and full C/I/A impact make this a genuine priority on multi-tenant RHEL virtualization hosts.
Memory exhaustion denial of service in cockpit-ws affects Red Hat Enterprise Linux 7 through 10 and Red Hat OpenShift Dev Spaces, exploitable by any remote unauthenticated attacker. The login page request handler leaks a heap allocation on every HTTP request that includes a CockpitLang cookie, with no authentication or special privilege required. Sustained request flooding with this cookie will exhaust host memory, crashing the cockpit-ws service and potentially destabilizing the underlying host; no public exploit or active exploitation has been identified at time of analysis.
Unauthenticated remote crash of rsyslogd is possible through a flaw in the optional imptcp input module, where a crafted input sequence during oversize-frame recovery produces an invalid internal message length and terminates the logging daemon. Systems running Red Hat Enterprise Linux 6 through 10 are affected only when imptcp is explicitly loaded with a non-default frame delimiting mode; the default imptcp framing and the separate imtcp module are explicitly confirmed unaffected. No public exploit code and no CISA KEV listing have been identified at time of analysis; CVSS scores this at 7.5 High solely on the basis of network-accessible, unauthenticated availability impact.
Incorrect authorization in FreeIPA's trust-fetch-domains command allows any authenticated, non-privileged IPA user to trigger a privileged Active Directory trust refresh using an attacker-supplied server and credentials, writing attacker-controlled trusted-domain and ID-range data into the FreeIPA LDAP directory. The flaw (CWE-863) stems from the command being gated by a read-only trust object permission rather than the required trust-administration permission, effectively bypassing the authorization boundary between read and write operations on cross-realm identity data. No public exploit has been identified and CISA has not listed this in KEV, but the scope-changed CVSS score of 8.2 and high integrity impact reflect serious potential for identity infrastructure tampering in environments running AD trusts.
Code injection in the Perl DBI module as packaged for Red Hat Enterprise Linux allows a network-accessible, low-privileged attacker to execute arbitrary code, resulting in full confidentiality, integrity, and availability compromise. This CVE is a remediation of an incomplete fix for CVE-2026-14380, specifically targeting RHEL 9.8.z and 10.2.z patch levels where the prior partial fix left an exploitable residual path. No public exploit or CISA KEV listing is identified at time of analysis, but the CWE-94 classification and RCE tag indicate high potential impact if exploitation conditions are met.
Privilege escalation in the `openvt -u` utility allows a local low-privileged attacker to obtain passwordless root login on Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and Red Hat OpenShift Container Platform 4. The flaw lies in `authenticate_user()`, which resolves VT ownership via `stat("/proc/<pid>/fd/0")` - a call that follows the symlink to the underlying TTY device node rather than inspecting the owning process, causing the check to read the device node's UID rather than the process owner's UID. When a privileged user logs out and TTY device node ownership reverts to root or the getty owner while an attacker's process still holds fd 0 on that TTY, the check incorrectly authorizes a passwordless `login -f root` execution. No public exploit is identified at time of analysis and there is no CISA KEV listing, but the root-level impact makes this a high priority for environments using the affected `kbrequest`/init deployment pattern.
Privilege escalation in MRTG (Multi Router Traffic Grapher) allows a local low-privileged attacker to gain elevated file ownership on the host system. When the MRTG daemon is launched as root and then drops privileges, a CWE-59 symlink-following flaw in PID file handling lets an attacker pre-place or manipulate a symlink at the expected PID file path, causing the root process to change ownership of an arbitrary existing file to the daemon user. Affected platforms include Red Hat Enterprise Linux 6 through 10; no public exploit code or CISA KEV listing has been identified at time of analysis.
Privilege escalation in libvirt's `virFileChownFiles()` function allows a process confined to the `swtpm` system user to coerce the root-level libvirtd daemon into reassigning ownership of any arbitrary file on the host to the `swtpm` user. The attack exploits a symlink-following flaw (CWE-59) in directory traversal logic that runs with root privileges, affecting libvirt as packaged across Red Hat Enterprise Linux 6 through 10 and RHEL for Nvidia 26. No public exploit has been identified at time of analysis, but the attack complexity is low once `swtpm`-user execution is obtained.
Out-of-bounds write vulnerabilities in GIMP's PSD and PAA file format parsing plugins allow remote attackers to achieve code execution with the privileges of the local user by delivering a specially crafted image file. Affected deployments include GIMP packages shipped with Red Hat Enterprise Linux 6 through 9. No public exploit code has been identified at time of analysis, and CISA SSVC classifies exploitation status as none with the attack assessed as not automatable, though technical impact is rated total given the C:H/I:H/A:H CVSS profile.
Arbitrary code execution in GIMP's PSD import plugin allows an attacker to run code in the context of the user who opens a maliciously crafted .psd file. An unsigned integer underflow in the plugin's block_rem length variable (CWE-191) corrupts parsing of Photoshop layer resource blocks, letting attacker-controlled data be treated as trusted structures. Reported by Red Hat and tracked upstream in GNOME's GIMP tracker; SSVC lists a proof-of-concept, though it is not in CISA KEV and EPSS exploitation probability is low (0.31%).
Heap overflow in GIMP's Seattle Filmworks file loader allows an attacker who tricks a user into opening a specially crafted SFW file to write several kilobytes of attacker-controlled data beyond the intended buffer, resulting in memory corruption that can lead to arbitrary code execution or denial of service. Affected platforms confirmed via CPE data are Red Hat Enterprise Linux 6 through 9 with GIMP installed. No public exploit code has been identified and this CVE is not listed in CISA's KEV catalog, but the high CVSS 7.8 score reflects the full confidentiality, integrity, and availability impact achievable once a victim is socially engineered into opening the malicious file.
Integer overflow and underflow flaws in GStreamer's gst-plugins-ugly ASF demuxer expose systems to denial of service and limited heap data disclosure when processing attacker-controlled media files. The asfdemux plugin fails to adequately validate length and size fields inside ASF/WMV/WMA header objects, allowing arithmetic overflows to bypass bounds checks and trigger out-of-bounds heap reads. Any application or user that opens an untrusted media file through a GStreamer pipeline - browsers, media players, thumbnailers - is exposed; no public exploit or CISA KEV listing has been identified at time of analysis.
Heap out-of-bounds write in GStreamer's adpcmdec element allows a crafted WAV file containing malformed multi-channel IMA/DVI ADPCM audio to corrupt application memory, cause denial of service, or potentially achieve arbitrary code execution. Affected deployments include Red Hat Enterprise Linux 7 through 10, where the vulnerable gst-plugins-bad package is distributed. No confirmed active exploitation (not in CISA KEV) and no public proof-of-concept has been identified at time of analysis, though the CVSS score of 7.6 reflects the realistic network-deliverable, user-interaction-dependent attack path.
Command injection in dracut's die() error-handling function allows an unauthenticated attacker on the adjacent network, controlling a rogue DHCP server, to execute arbitrary commands as root during initramfs boot-failure recovery. The flaw exists because error messages written into emergency hook shell scripts under the initramfs environment are not shell-quoted, and those messages can carry attacker-controlled data sourced from the DHCP ROOT_PATH option processed by the 40network module. No public exploit code or CISA KEV listing has been identified at time of analysis, but the exploitation primitive is conceptually straightforward for anyone with DHCP server control on the local network segment.
Unbounded memory growth in GStreamer's RTP H.264 and H.265 depayloader elements allows a remote unauthenticated attacker to exhaust process memory and terminate any application consuming RTP video streams. The rtph264depay and rtph265depay elements in gst-plugins-good lack an upper bound on their internal reassembly buffer, meaning an attacker who continuously sends fragmented RTP packets while withholding the end-of-fragment marker can grow that buffer without limit. No public exploit has been identified at time of analysis, and CISA KEV listing is absent, but the CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates this is trivially exploitable against any exposed GStreamer RTP pipeline.
Memory corruption in libkcapi's one-shot asynchronous I/O path allows a local process to induce kernel writes into application-owned output buffers after an error return. Affected platforms include Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and OpenShift Container Platform 4. An unprivileged local attacker or a compromised application can exploit this use-after-free-class condition to crash the calling process (high availability impact) or corrupt buffer contents for limited confidentiality and integrity impact. No public exploit code or CISA KEV listing has been identified at time of analysis.
Out-of-bounds read in SSSD's PAM responder allows a local low-privileged attacker to crash the SSSD process and disclose sensitive memory contents by sending a crafted protocol v1 authentication request. Affected systems span all major Red Hat Enterprise Linux releases (6 through 10) and OpenShift Container Platform 4, representing a broad footprint in enterprise Linux environments. No active exploitation is confirmed (not listed in CISA KEV), and the EPSS score of 0.14% at the 3rd percentile reflects a very low observed exploitation probability at time of analysis.
Heap-based buffer overflows in GIMP's APNG and DDS image loaders let an attacker corrupt heap memory - and potentially achieve code execution - when a victim opens a specially crafted image file. The APNG path is triggered when the fcTL frame width exceeds the IHDR image width, so pixel data is written past the end of a heap allocation, while the DDS path involves a bits-per-pixel mismatch inside the load_layer() function. Exploitation is local and gated by user interaction (CVSS:3.1/AV:L/AC:L/PR:N/UI:R, 7.8 High), no public exploit code has been identified at time of analysis, and EPSS is very low at 0.13% (3rd percentile); Red Hat has shipped patched packages via RHSA-2026:73768 and RHSA-2026:50817.
Denial of service in gnome-remote-desktop as shipped in Red Hat Enterprise Linux 8, 9, and 10 lets an unauthenticated remote attacker exhaust server resources when the daemon runs in system mode with RDP enabled. Because the incoming connection handler bypasses the connection throttler, an attacker can open large numbers of parallel pre-authentication RDP connections, accumulating accepted sockets and pending routing-token operations until timeout and blocking legitimate RDP logins. There is no public exploit identified at time of analysis, and the flaw is specific to Red Hat's build - it does not affect the upstream project.
Information disclosure in 389 Directory Server (upstream of Red Hat Directory Server 11-13, shipped across RHEL 6-10) lets an unauthenticated remote attacker inject LDAP search filters into the CleanAllRUV replication status-check extended operation. Because the handler evaluates attacker-controlled filters against cn=config using elevated replication-plugin privileges and leaks a boolean match result, attackers can blindly enumerate sensitive configuration metadata such as replication bind DNs and password storage scheme details. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the network-reachable, no-authentication attack surface makes it a meaningful reconnaissance primitive.
Remote unauthenticated denial of service in 389 Directory Server (389-ds-base, shipped as Red Hat Directory Server 11-13 and within RHEL 6-10) allows an attacker to crash the LDAP daemon by sending a crafted replication extended operation. The flaw is a stack buffer overflow in the RUV parsing path that triggers during payload decoding before any authorization check, so no credentials are needed. No public exploit identified at time of analysis; stack protectors constrain the outcome to a server crash rather than code execution.
Confidential Active Directory attribute disclosure in Samba's Active Directory Domain Controller allows an authenticated low-privilege domain user to read protected directory attributes by abusing how LDAP Compare requests are handled. Because Samba fails to validate user-supplied attribute names (LDAP filter injection, CWE-90) and runs the resulting internal search in a trusted context, normal ACL enforcement is bypassed; in gMSA-enabled deployments this permits extraction of msKds-RootKeyData and offline derivation of Group Managed Service Account passwords, which can escalate to full domain compromise. No public exploit identified at time of analysis and the issue is not listed in CISA KEV, but a vendor patch is available.
Remote unauthenticated denial of service in Performance Co-Pilot (PCP), the system performance monitoring toolkit shipped with Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4, allows an attacker to permanently disable a PCP daemon by triggering a signed integer overflow (CWE-190) in the __pmGetPDU() PDU-length handling routine. A crafted network packet sent during normal PDU processing or SASL authentication negotiation corrupts the read logic so that the daemon can no longer read any subsequent packets, requiring a manual restart. There is no public exploit identified at time of analysis and the flaw yields no code execution or data exposure - impact is availability-only (CVSS 7.5, A:H).
Remote unauthenticated access-control bypass in the Performance Co-Pilot (PCP) pmproxy component lets attackers reach the /store endpoint and overwrite arbitrary PMDA (Performance Metrics Domain Agent) metric values, which the reporter (Red Hat) states can escalate to arbitrary code execution and full system takeover. The flaw affects PCP as shipped across Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the network-reachable, no-authentication attack surface makes exposed pmproxy instances a meaningful risk.
Local privilege escalation in Performance Co-Pilot (PCP) on Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 arises from the linux_sockets module exposing an unsecured internal connection. An attacker who already holds low-level code execution on the host can leverage this leaked/unprotected socket to run arbitrary commands as root. No public exploit has been identified at time of analysis and the flaw is not in CISA KEV, so exploitation would require an existing foothold rather than remote unauthenticated access.
Local privilege-relevant command injection in Performance Co-Pilot's (PCP) linux_sockets PMDA lets an authenticated user inject shell metacharacters through the network.persocket.filter metric, causing arbitrary commands to run as the PMDA user each time metrics refresh. Reported by Red Hat, it affects the pcp packages shipped across Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. There is no public exploit identified at time of analysis, and the flaw is not listed in CISA KEV.
Out-of-bounds write in GNU binutils' BFD library (bfd/elf32-dlx.c) lets a crafted ELF/DLX object file corrupt memory and achieve arbitrary code execution when parsed by any BFD-consuming tool (objdump, readelf, strip, ld, nm, objcopy). Reported by Red Hat and tracked against RHEL 6-10, Hardened Images and OpenShift 4, the flaw is only reachable when binutils is compiled with the DLX backend (typically --enable-targets=all), so exposure is gated by a non-default build option. There is no public exploit identified at time of analysis (not in CISA KEV), though the researcher demonstrated code execution via a File Stream Oriented Programming (FSOP) attack on glibc FILE structures.
Privilege escalation in CRIU allows a malicious container process to spoof credentials during checkpoint, resulting in elevated capabilities upon restore. On Red Hat platforms, effective exploitation is mitigated by mandatory access controls, user namespaces, and the requirement for privileged checkpoint initiation. No public exploit identified at time of analysis.
Arbitrary command execution as root via udev property injection in sg3_utils when sg_inq --export parses a SCSI device with a crafted name string. Affects multiple Red Hat Enterprise Linux versions shipping sg3_utils. Publicly available exploit code exists as a proof-of-concept in the upstream fix; no active exploitation has been reported.
Denial of service in OpenPrinting libcupsfilters (as shipped in Red Hat Enterprise Linux 7 through 10) allows a network-adjacent attacker to pin a CPU at 100% by broadcasting a crafted printer advertisement. The flaw lies in cfIEEE1284NormalizeMakeModel(), which enters an infinite loop (CWE-835) when parsing an IEEE-1284 device ID whose model field is empty. There is no public exploit identified at time of analysis, and it is not listed in CISA KEV; impact is limited to availability with no data compromise.
Arbitrary command execution in ansible-core allows an attacker who controls a collection source URI to run commands on a victim's machine when that victim executes 'ansible-galaxy collection install' against the malicious git source. The flaw lives in _extract_collection_from_git() in concrete_artifact_manager.py, which builds git clone commands without a '--' end-of-options separator, letting crafted URIs be parsed as git arguments. It is an incomplete fix for CVE-2026-11332, which patched the analogous role-install path but left the collection-install path exposed; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.
Privilege escalation via authentication bypass in libssh affects servers that enable GSSAPIKeyExchange, where the gssapi-keyex authentication path fails to confirm that the authenticated Kerberos principal is actually authorized for the local user account being requested. An already-authenticated client holding any valid Kerberos principal in the realm can therefore log in as an arbitrary user, including potentially privileged accounts, on Red Hat Enterprise Linux 8, 9, and 10 and Red Hat Hardened Images. No public exploit is identified at time of analysis and the issue is not listed in CISA KEV, but the CVSS of 8.8 reflects a straightforward, low-complexity abuse once a valid Kerberos credential is held.
Denial of service (and potential use-after-free) in libssh occurs when the library processes SSH data packets that arrive after a channel has been closed, causing channel data callbacks to fire against already-freed memory. Any application or system linking the affected libssh - including Red Hat Enterprise Linux 8, 9, and 10 and Red Hat Hardened Images - can be crashed by a malicious SSH peer that sends channel data at the wrong point in the connection lifecycle. There is no public exploit identified at time of analysis, EPSS is low (0.26%), and CISA SSVC scores exploitation as none, indicating a real but non-urgent memory-safety fix.
Denial of service in libssh affects clients that use automatic certificate-based public key authentication, where logic errors cause the client to loop indefinitely when configured certificates are absent or are repeatedly rejected by the SSH server. Reported by Red Hat and shipped in Red Hat Enterprise Linux 8, 9, and 10 plus Red Hat Hardened Images, the flaw lets a hostile or misconfigured server hang a connecting client and consume CPU. There is no public exploit identified at time of analysis, and EPSS is low at 0.17% (7th percentile), consistent with an availability-only, client-side bug rather than a mass-exploited issue.
Integrity-protection bypass in libssh builds compiled against the OpenSSL crypto backend, caused by incorrect AES-GCM finalization checks that fail to verify the authentication tag. An in-path (man-in-the-middle) attacker positioned on an SSH session can silently alter plaintext bytes on the wire without triggering a MAC/integrity failure, defeating a core guarantee of the SSH transport layer. There is no public exploit identified at time of analysis, EPSS risk is low (0.28%, 20th percentile), and CISA SSVC rates exploitation as 'none' though 'automatable: yes'.
Denial of service in libcupsfilters and cups-filters (the OpenPrinting image-filtering stack bundled with Red Hat Enterprise Linux 7 through 10) allows an unauthenticated attacker to abort the CUPS image filter by submitting a specially crafted PNG print job. The PNG reader instantiates a libpng decoder without registering an error-recovery handler, so a malformed image triggers libpng's default fatal-error path and terminates the filter process, killing the in-flight print job. No public exploit identified at time of analysis; this is a print-job availability issue, not a code-execution or data-exposure flaw.
Local privilege escalation to root in the QEMU Guest Agent (qga) affects Red Hat Enterprise Linux 6 through 10, RHEL for NVIDIA 26, and OpenShift Container Platform 4, where a local unprivileged guest user abuses the guest-ssh-add-authorized-keys command handler through symlink manipulation to seize ownership of arbitrary root-owned files. Two attack variants exist - a deterministic directory-symlink bypass and a TOCTOU file-symlink race - both requiring an external management layer such as libvirt to invoke the code path. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the CVSS 7.3 rating and clean path to full root access make it a meaningful local escalation risk in multi-tenant virtualization estates.
Out-of-bounds heap write in the freedesktop xdgmime library (bundled with GLib-based MIME detection) allows a local attacker to crash or corrupt the memory of any application that guesses content types via g_content_type_guess(). The flaw lives in _xdg_mime_magic_parse_magic_line() in xdgmimemagic.c and triggers on little-endian systems when a maliciously crafted MIME magic file placed in a user-writable XDG data location is parsed, producing a 2-byte out-of-bounds write. Red Hat rates it 7.1 (Important); no public exploit is identified at time of analysis and it is not listed in CISA KEV.
Sandbox escape in PipeWire's PulseAudio compatibility layer lets a low-privileged process inside a confined environment such as Flatpak load an attacker-controlled library and execute arbitrary code on the host user's session. The flaw (CWE-427) is present in PipeWire as shipped in Red Hat Enterprise Linux 7, 8, 9 and 10 and carries a scope-changing CVSS 3.1 score of 8.8. There is no public exploit identified at time of analysis, and it is not listed in CISA KEV.
Denial of service in libsolv's PGP signature verification (solv_pgpvrfy) allows remote attackers to crash automated package and repository processing by supplying a crafted Ed25519 signature. The flaw is a stack-based buffer overflow (CWE-121) triggered when the EdDSA 's' MPI is copied into a fixed 64-byte stack buffer using an attacker-controlled mismatched length. It affects the libsolv dependency solver embedded in Red Hat Enterprise Linux 7/8/9/10, OpenShift, Satellite, RHUI, openSUSE/SUSE, Ubuntu and Debian; no public exploit identified at time of analysis and it is not in CISA KEV.
Out-of-bounds heap write in QEMU lets a local attacker operating inside a guest virtual machine corrupt memory in the host emulator process, enabling information disclosure, data-integrity corruption, or denial of service. The flaw stems from cpu_physical_memory_map() returning a shorter buffer length than the caller assumes, so subsequent writes spill past the allocation. Rated CVSS 7.8 (CWE-787); no public exploit identified at time of analysis, but multiple distributions (Red Hat, Ubuntu, SUSE, Debian) have shipped fixes.
Remote denial of service in libsoup, the GNOME HTTP client/server library, allows unauthenticated attackers to crash any application using libsoup's WebSocket support by sending a single malformed control frame. The parser fails to enforce RFC 6455's 125-byte limit on PING/PONG/CLOSE control frames and mishandles the oversized payload instead of cleanly closing the connection, causing an internal processing crash. Red Hat reports the flaw across RHEL 6 through 10; no public exploit has been identified at time of analysis and no EPSS score was provided.
Denial of service in libsoup's WebSocket permessage-deflate implementation lets a remote, unauthenticated attacker crash applications by sending a small, highly compressed 'decompression bomb' that expands without bound during inflation, exhausting memory and triggering an Out-of-Memory kill. All Red Hat Enterprise Linux 6 through 10 ship the affected libsoup HTTP/WebSocket library, and client connections are especially exposed because the decompressed-size guard (max_total_message_size) is disabled by default for clients. There is no public exploit identified at time of analysis and this CVE is not listed in CISA KEV.
Denial of service in GStreamer's DTLS plugin allows a remote unauthenticated attacker to crash any application that performs a DTLS handshake (notably WebRTC/webrtcbin pipelines) by presenting a TLS certificate with an oversized Subject Distinguished Name. The Subject DN is written into a fixed 2048-byte stack buffer with no bounds checking (CWE-121), and overflowing it corrupts the stack and terminates the process. There is no public exploit identified at time of analysis and it is not listed in CISA KEV; impact is limited to availability (process crash), with no code execution or data exposure claimed.
Heap buffer overflow in GStreamer's rfbsrc (RFB/VNC source) plugin lets a malicious VNC server crash or corrupt the memory of any client that connects to it. When the server advertises a 16bpp framebuffer and sends Hextile-encoded updates, the background-fill path writes 32-bit pixels into a 16-bit buffer, producing an out-of-bounds heap write. No public exploit identified at time of analysis; the primary confirmed impact is denial of service, with potential for further memory corruption. This is a client-side flaw requiring the victim to connect to attacker-controlled infrastructure.
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.
Memory corruption in GIMP's Paint Shop Pro (.psp) import parser lets an attacker crash the application or possibly execute code by persuading a victim to open a crafted PSP image file. The root cause is a double-free (CWE-415) in the read_layer_block() routine; exploitation requires local user interaction to open the file and results in per-user, client-side compromise rather than server-side or unattended exploitation. There is no public exploit identified at time of analysis, the SSVC decision framework rates exploitation as 'none' and automatable as 'no', and EPSS is low at 0.12% (2nd percentile), yet Red Hat tracks the defect across RHEL 6 through 9 and a vendor patch plus an upstream commit are available.
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.