CVE-2026-56209highCWE-787

CVE-2026-56209: high-severity vulnerability in Red Hat AI Inference Server

Libaom: libaom: arbitrary address write via svc layer context oob and cyclic refresh map pointer hijack

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.6%
An arbitrary address write vulnerability was found in libaom, the reference AV1 codec implementation. A missing bounds check in the SVC (Scalable Video Coding) layer ID control function allows an attacker to inject an arbitrary pointer into the cyclic refresh map field via crafted image pixel values. The encoder then writes approximately 1,200 bytes at the attacker-controlled address. This is fully deterministic and does not require a separate information leak. An attacker who can supply frames to a network-facing libaom encoder with SVC enabled could exploit this for denial of service or potential code execution.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Affected products
Red Hat · Red Hat AI Inference ServerRed Hat · Red Hat AI Inference Server 3.2Red Hat · Red Hat AI Inference Server 3.3Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux AI 3.3Red Hat · Red Hat Enterprise Linux AI 3.3 for RHEL 9Red Hat · Red Hat Enterprise Linux AI 3.4 for RHEL 9Red Hat · Red Hat Enterprise Linux AI 3.5 for RHEL 9Red Hat · Red Hat Hardened ImagesRed Hat · Red Hat OpenShift AI 3.3Red Hat · Red Hat OpenShift AI 3.4Red Hat · Red Hat OpenShift AI 3.5Red Hat · Red Hat OpenShift AI (RHOAI)
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