CVE-2026-111183 GStreamer rtpL16depay Heap-based Buffer Overflow Remote Code Execution Vulnerability

Critical 9.8 Published Updated
Exploited in the wild
Not known
Fix
Available

What is CVE-2026-111183?

CVE-2026-111183 is a critical vulnerability in GStreamer, published on 21 Oct 2026.

Official description

GStreamer rtpL16depay Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.

The specific flaw exists within the processing of RTP payload elements. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-31143.

Weakness: CWE-122

Which versions are affected by CVE-2026-111183?

How do I fix CVE-2026-111183?

Upgrade to a fixed version.

Is CVE-2026-111183 being exploited?

There is no known exploitation of CVE-2026-111183 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-111183, ECHO-72a0-7caf-d131, GHSA-62fg-53h6-6f68, UBUNTU-CVE-2026-111183.

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