CVE-2026-124312

Medium

Description

Fraunhofer HHI VVdeC through 3.2.1 contains a heap out-of-bounds read vulnerability that allows attackers to crash the decoder by supplying a collocated picture of different resolution. Attackers can craft a VVC bitstream enabling TMVP with a smaller collocated reference picture, causing getColInfo to read past the colMotion allocation when error concealment is enabled.

SeverityMedium

CVSS4.7

Exploit probability—

ProductFraunhoferhhi Vvdec

PublishedNov 7, 2026

First seenNov 7, 2026

Weakness typeCWE-125Out-of-bounds read

How to fix

Patches

github.com/fraunhoferhhi/vvdec/commit/0695c06221c27b3680fec9851ac2cf46b2195ea9

Affected products

Product	Affected versions	Fixed in
fraunhoferhhi vvdec	v ≤ 3.2.1	—

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