Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gstreamer | Gstreamer | < 1.28.1 |
Related Weaknesses (CWE)
References
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/37d7991168a223d0810fPatchVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-26-164/Third Party Advisory
FAQ
What is CVE-2026-2920?
CVE-2026-2920 is a vulnerability with a CVSS score of 7.8 (HIGH). 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. Inter...
How severe is CVE-2026-2920?
CVE-2026-2920 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2920?
Check the references section above for vendor advisories and patch information. Affected products include: Gstreamer Gstreamer.