CVE-2025-6663

GStreamer H266 Codec Parsing 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 H266 sei messages. 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-27381.
CVSS

No CVSS.

Configurations

Configuration 1 (hide)

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

History

14 Aug 2025, 13:44

Type Values Removed Values Added
References () https://gitlab.freedesktop.org/tpm/gstreamer/-/commit/eedd01ac3dfeb60e36a44bb61a6d0418454e8416 - () https://gitlab.freedesktop.org/tpm/gstreamer/-/commit/eedd01ac3dfeb60e36a44bb61a6d0418454e8416 - Patch
References () https://www.zerodayinitiative.com/advisories/ZDI-25-467/ - () https://www.zerodayinitiative.com/advisories/ZDI-25-467/ - Third Party Advisory
First Time Gstreamer Project gstreamer
Gstreamer Project
CPE cpe:2.3:a:gstreamer_project:gstreamer:*:*:*:*:*:*:*:*
CWE CWE-787

07 Jul 2025, 15:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-07-07 15:15

Updated : 2025-08-14 13:44


NVD link : CVE-2025-6663

Mitre link : CVE-2025-6663


JSON object : View

Products Affected

gstreamer_project

  • gstreamer
CWE
CWE-787

Out-of-bounds Write

CWE-121

Stack-based Buffer Overflow