CVE-2026-124310

Medium

Description

Fraunhofer HHI VVdeC before 3.2.1 contains an out-of-bounds read vulnerability that allows attackers to crash the decoder by supplying bitstreams with overlapping slice CTU coverage. Attackers can code a CTU in a second slice so a bi-predicted BDOF coding unit carries a negative reference index, causing Slice::getRefPic to read outside m_apcRefPicList and crash decoding.

SeverityMedium

CVSS6.1

Exploit probability—

ProductFraunhoferhhi Vvdec

PublishedNov 7, 2026

First seenNov 7, 2026

Weakness typeCWE-129CWE-129

How to fix

Update

fraunhoferhhi vvdec3.2.1 or later

Patches

github.com/fraunhoferhhi/vvdec/commit/6e4b907ef5ab9db390b1293ba1ad5d7dd0a67e3f
github.com/fraunhoferhhi/vvdec/commit/32b842c10bf024f09bc7cf1445fa6f8a987422ca

Affected products

Product	Affected versions	Fixed in
fraunhoferhhi vvdec	v < 3.2.1	3.2.1

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