GStreamer H266 Codec Parsing Stack-Based Buffer Overflow Remote Code Execution Vulnerability

Vulnerability

A stack-based buffer overflow vulnerability allowing remote code execution has been identified in GStreamer, specifically within the H266 codec parsing. The issue arises from improper validation of the length of user-supplied data in H266 sei messages, leading to arbitrary code execution in the context of the current process. This vulnerability requires interaction with the GStreamer library to exploit, and the attack vectors may vary depending on the implementation.

Impact

Exploitation of this vulnerability allows for arbitrary code execution on the affected system.

Remediation

GStreamer has released a patch for this vulnerability. Users can refer to the GStreamer GitLab repository for the updated version.

Added: Jul 7, 2025, 3:54 PM
Updated: Jul 7, 2025, 3:54 PM

Vulnerability Rating

Custom Algorithm
spread
6.6
impact
10.0
exploitability
5.1
remediation
7.7
relevance
0.2
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.