CVEvulnerability
CVE-2026-12892
4.4 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-23
- Last modified
- 2026-07-06
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.4 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
- Weaknesses
- CWE-125
Description
A flaw was found in GStreamer's gst-plugins-bad package. When processing a specially crafted H.264 video file containing malformed MVC or SVC extension slice NAL units, a 1-byte heap out-of-bounds read can occur during parsing. This happens when the parser attempts to check slice boundary information without first verifying that the NAL unit contains enough data beyond the extension header. An attacker could exploit this by tricking a user into opening a malicious H.264 video file, potentially causing the application to crash or leak a single byte of heap memory.
Affected configurations
• gstreamer gstreamer
• redhat enterprise linux 6.0
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://access.redhat.com/security/cve/CVE-2026-12892 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2491321 Vendor Advisory, Issue Tracking
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5108 Not Applicable