Skip to main content

GStreamer CVE-2026-59692

| EUVDEUVD-2026-42570 HIGH
Stack-based Buffer Overflow (CWE-121)
2026-07-09 redhat GHSA-f48p-mg4r-fhww
Buffer Overflow Denial Of Service Stack Overflow Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 9 Red Hat
7.5
CVSS 3.1 · Vendor: redhat
Share

Severity by source

Vendor (redhat) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI
7.5 HIGH

Remote unauthenticated peer triggers the overflow during handshake with no user interaction (AV:N/AC:L/PR:N/UI:N); impact is a crash only, so C:N/I:N/A:H.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE
HIGH
qualitative
Red Hat
7.5 HIGH
qualitative

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 09, 2026 - 11:22 vuln.today
CVE Published
Jul 09, 2026 - 09:35 nvd
HIGH 7.5

DescriptionCVE.org

A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an oversized Subject DN that exceeds the buffer, causing a stack buffer overflow and process crash, resulting in denial of service.

AnalysisAI

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.

Technical ContextAI

GStreamer is the widely used open-source multimedia framework that powers audio/video pipelines across Linux desktops, embedded devices, and server-side media processing. The affected component is the DTLS plugin, which implements Datagram TLS used to secure media transport in WebRTC (SRTP key exchange via the webrtcbin/dtls elements). During the DTLS handshake, the plugin extracts the peer certificate's Subject Distinguished Name for logging/inspection and formats it into a fixed-size 2048-byte buffer allocated on the stack. Because the copy performs no length validation, an attacker-controlled certificate whose Subject DN exceeds 2048 bytes writes past the buffer boundary - a classic CWE-121 stack-based buffer overflow. Since certificates are supplied by the remote peer before authentication completes, the flaw is reachable pre-authentication. Red Hat CPE data attributes the affected packages to Red Hat Enterprise Linux 6 through 10 (the distro-shipped GStreamer builds), and the root fix lives upstream in the freedesktop GStreamer project.

RemediationAI

Upstream fix available (PR/commit); released patched version not independently confirmed - apply the GStreamer security update once your distribution ships it. Red Hat users should update the affected GStreamer packages when RHEL 6/7/8/9/10 errata are published; track https://access.redhat.com/security/cve/CVE-2026-59692 and Bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=2497344 for the exact fixed builds, and reference the upstream change at https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/99. Until patched, reduce exposure by not accepting DTLS handshakes from untrusted peers: where the application permits, disable or unload the GStreamer DTLS plugin if WebRTC/DTLS is not needed (side effect: breaks WebRTC media), or place the media endpoint behind an authenticating gateway/TURN relay and restrict which peers can initiate DTLS (side effect: limits legitimate peer reachability). Network-layer filtering of the media/DTLS ports to known peers reduces attack surface but does not fix the underlying overflow.

More in Red Hat Enterprise Linux 10

View all
CVE-2026-18663 MEDIUM
5.9 Aug 12

Heap corruption via double-free in 389-ds-base's LDAP control parsing allows an unauthenticated remote attacker to crash
CVE-2026-4631 CRITICAL POC
9.8 Apr 07

Remote code execution in Cockpit's web interface allows unauthenticated attackers to execute arbitrary commands on the h
CVE-2026-4480 CRITICAL POC
9.0 May 26

Remote code execution in Samba's printing subsystem allows remote attackers to inject arbitrary shell commands via craft
CVE-2026-18922 CRITICAL
9.8 Sep 07

Authentication bypass in 389 Directory Server (shipped as Red Hat Directory Server 11-13 and within RHEL 6-10) lets remo
CVE-2026-14544 CRITICAL
9.8 Jul 03

Remote code execution and privilege escalation in HPLIP (HP Linux Imaging and Printing) affects the hpcups print filter

CVE-2026-76578 CRITICAL
9.8 Sep 07

Unauthenticated privilege escalation in FreeIPA (Red Hat Identity Management) allows a remote attacker to gain genuine a
CVE-2026-5121 HIGH
7.5 Mar 30

Remote code execution in libarchive on 32-bit systems allows unauthenticated attackers to execute arbitrary code via spe
CVE-2026-28369 CRITICAL
9.1 Mar 27

HTTP request smuggling in Undertow (the embedded web server underpinning JBoss EAP, Red Hat Data Grid, and Apache Camel

CVE-2026-28368 CRITICAL
9.1 Mar 27

HTTP request smuggling in Red Hat Undertow allows remote unauthenticated attackers to bypass front-end security controls
CVE-2026-33845 CRITICAL
9.1 Apr 30

Out-of-bounds read in the GnuTLS DTLS handshake reassembly logic lets remote unauthenticated attackers trigger an intege
CVE-2026-28367 CRITICAL
9.1 Mar 27

HTTP request smuggling in Undertow allows remote unauthenticated attackers to send `\r\r\r` as a header block terminator
CVE-2026-16526 HIGH
8.8 Jul 30

Local privilege escalation in Performance Co-Pilot (PCP) on Red Hat Enterprise Linux 6 through 10 and OpenShift Containe

Same weakness CWE-121 – Stack-based Buffer Overflow

View all
CVE-2025-0282 CRITICAL POC
9.0
CVE-2025-22457 CRITICAL POC
9.8
CVE-2012-10060 CRITICAL POC
9.3
CVE-2012-10053 CRITICAL POC
9.3
CVE-2013-10064 CRITICAL POC
9.3
CVE-2012-10023 MEDIUM POC
6.9
CVE-2012-10058 CRITICAL POC
10.0
CVE-2013-10068 CRITICAL POC
9.4

Same technique Buffer Overflow

View all
CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2020-0796 CRITICAL POC
10.0
CVE-2019-11043 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8

Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Fixed

Share

CVE-2026-59692 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy