CVE-2026-3086

GStreamer H.266 Codec Parser Out-Of-Bounds Write 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 APS units. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28911.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

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

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/025d59cf3459c2903f0384b6b94bc3235e177b53	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-26-170/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-16 14:19

Updated : 2026-03-17 18:56

NVD link : CVE-2026-3086

Mitre link : CVE-2026-3086

CVE.ORG link : CVE-2026-3086

JSON object : View

Products Affected

gstreamer

gstreamer

CWE

CWE-787

Out-of-bounds Write

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