CVE-2026-3081 PUBLISHED

GStreamer H.266 Codec Parser Stack-based Buffer Overflow Remote Code Execution Vulnerability

Assigner: zdi
Reserved: 23.02.2026 Published: 13.03.2026 Updated: 13.03.2026

GStreamer H.266 Codec Parser Stack-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 parsing of decoding units. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28839.

Metrics

CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 7.8

Product Status

Vendor GStreamer
Product GStreamer
Versions Default: unknown
  • Version 1c6e163aa33962f5ee4a87d29319ccdd5cb67612 is affected

References

Problem Types

  • CWE-121: Stack-based Buffer Overflow CWE