7.8
HIGH CVSS 3.0
CVE-2026-3086
GStreamer H.266 Codec Parser Out-Of-Bounds Write Remote Code Execution Vulnerability
Description

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.

INFO

Published Date :

March 13, 2026, 8:40 p.m.

Last Modified :

March 13, 2026, 8:40 p.m.

Remotely Exploit :

No

Source :

zdi
Affected Products

The following products are affected by CVE-2026-3086 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.0 HIGH 99f1926a-a320-47d8-bbb5-42feb611262e
CVSS 3.0 HIGH MITRE-CVE
Solution
Update GStreamer to a patched version to fix an out-of-bounds write vulnerability.
  • Update GStreamer to the latest version.
  • Apply vendor-provided patches.
  • Review library implementations for secure processing.
  • Validate user-supplied data rigorously.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-3086 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.