Out-of-bounds Read in Red Hat Enterprise Linux 10

CVE-2026-56210

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 conf…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-56210?
CVE-2026-56210 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2026-06-19.
How severe is CVE-2026-56210?
High severity. CVSS v3 base score is 7.1 out of 10.