CVE-2026-2920

HIGH 7.8

GStreamer ASF Demuxer Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVSS Score

7.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-122
Vendor	gstreamer
Product	gstreamer
Published	Mar 13, 2026
Last Updated	Jul 21, 2026

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CVSS v3 Breakdown

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Versions

GStreamer / GStreamer

1c6e163aa33962f5ee4a87d29319ccdd5cb67612

References

NVD ↗ CVE.org ↗ EPSS Data ↗