VULNERABILITY INTELLIGENCE
CVE-2026-56210
CVSS score7.1 HIGH
EPSS probability0.58%
CISA KEVNot currently listed
Published2026-06-19
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
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).
Weakness classification
- secalert@redhat.com: CWE-125
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-125