CVE-2026-56209Libaom: libaom: arbitrary address write via svc layer context oob and cyclic refresh map pointer hijack
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux AI 3.3 for RHEL 9 and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux AI 3.3 for RHEL 9 redhat:enterprise_linux_ai | from 0:3.14.0-1.el9ai not affected | CNA record |
Red Hat Red Hat AI Inference Server 3.2 redhat:ai_inference_server | from 1787860580 not affected | CNA record |
Red Hat Red Hat Hardened Images redhat:hummingbird | from 3.14.0-0.1.hum1 not affected | CNA record |
Red Hat Red Hat OpenShift AI 3.3 redhat:openshift_ai | from 1789137552 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | 10 | CNA record |
Red Hat Red Hat Enterprise Linux AI 3.3 for RHEL 9 redhat:enterprise_linux_ai | from 0:3.14.0-1.el9ai not affected | CISA ADP |
Red Hat Red Hat Hardened Images redhat:hummingbird | from 3.14.0-0.1.hum1 not affected | CISA ADP |
Red Hat Red Hat OpenShift AI 3.4 redhat:openshift_ai | from 1786611800 not affected | CISA ADP |
Red Hat Red Hat AI Inference Server redhat:ai_inference_server | 3 | CISA ADP |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | 10 | CISA ADP |
References
- https://access.redhat.com/errata/RHSA-2026:30814vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:42875vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:51100vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:51146vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:60520vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:61627vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:61628vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:61629vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68634vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68637vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68638vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68639vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68640vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68696vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68697vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68698vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68699vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68708vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68709vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68710vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69927vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69929vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69930vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69931vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69932vendor-advisory, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.