CVEvulnerability
CVE-2026-2920
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-03-16
- Last modified
- 2026-07-21
- Assigner
- [email protected]
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.0 ([email protected])
- 7.8 HIGH — CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-120, CWE-122
Description
GStreamer ASF Demuxer Heap-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 processing of stream headers within ASF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28843.
Affected configurations
• gstreamer gstreamer (< 1.28.1)
Related
References
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/37d7991168a223d0810fd1f4493ec6a8b6a510d3 Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-26-164/ Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:19024 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:19180 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:6259 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:6300 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:6750 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:8854 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:8862 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-2920 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2447490 bugzilla.redhat.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2920.json security.access.redhat.com