CVE-2026-56210
Last modified
CVE-2026-56210 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A heap-buffer-overflow read 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 setting a spatial_layer_id exceeding the configured number of layers. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
Description
A heap-buffer-overflow read 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 setting a spatial_layer_id exceeding the configured number of layers. This causes an out-of-bounds heap read of approximately 40,728 bytes when computing a layer context array index. An attacker who can influence SVC encoder parameters in a network-facing service could exploit this for information disclosure (heap content leak) or denial of service (segmentation fault from hitting unmapped memory).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux AI 3.3 for RHEL 9 | All versions |
| Red Hat | Red Hat Enterprise Linux AI 3.4 for RHEL 9 | All versions |
| Red Hat | Red Hat Enterprise Linux AI 3.5 for RHEL 9 | All versions |
| Red Hat | Red Hat Hardened Images | All versions |
| Red Hat | Red Hat AI Inference Server | All versions |
| Red Hat | Red Hat Enterprise Linux 10 | All versions |
| Red Hat | Red Hat Enterprise Linux 9 | All versions |
| Red Hat | Red Hat OpenShift AI (RHOAI) | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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