Vulnerability Description
GStreamer RIFF Palette Integer 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 handling of palette data in AVI files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28854.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gstreamer | Gstreamer | < 1.28.1 |
Related Weaknesses (CWE)
References
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e3a99c35266fc92dd6a1Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-26-168/Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2026/03/msg00018.html
FAQ
What is CVE-2026-2921?
CVE-2026-2921 is a vulnerability with a CVSS score of 7.8 (HIGH). GStreamer RIFF Palette Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction wi...
How severe is CVE-2026-2921?
CVE-2026-2921 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-2026-2921?
Check the references section above for vendor advisories and patch information. Affected products include: Gstreamer Gstreamer.