CVE-2026-56211 Affecting libaom-devel-doc package, versions <3.7.1-150400.3.12.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.41% (34th percentile)

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  • Snyk IDSNYK-SLES155-LIBAOMDEVELDOC-17949240
  • published11 Jul 2026
  • disclosed9 Jul 2026

Introduced: 9 Jul 2026

NewCVE-2026-56211  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 libaom-devel-doc to version 3.7.1-150400.3.12.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libaom-devel-doc package and not the libaom-devel-doc package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

A remote code execution vulnerability was found in libaom, the reference AV1 codec implementation. Insufficient bounds validation in the AV1 encoder's SVC (Scalable Video Coding) layer ID control allows an attacker to supply crafted video frame pixels that overlap with internal encoder layer context structures. In fork-based video processing services, an attacker can use this to hijack the cyclic refresh map pointer, brute-force the process base address via a crash oracle, and redirect control flow to achieve arbitrary command execution. Exploitation requires the target service to use libaom with SVC encoding enabled and accept attacker-supplied video frames.

CVSS Base Scores

version 3.1