CVE-2026-56210 | BDVDB-2026-341839 Detail

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).

Impact#

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Exploit#

History#

1. Version 12026-06-19Record published in the CVE List.
2. Version 22026-11-04Most recent update recorded in the CVE List.