CVE-2026-124310

EUVD-2026-119276
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://github.com/fraunhoferhhi/vvdec
https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/InterPrediction.cpp#L609-L631
https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/Slice.h#L2645
https://github.com/fraunhoferhhi/vvdec/commit/32b842c10bf024f09bc7cf1445fa6f8a987422ca
https://github.com/fraunhoferhhi/vvdec/commit/6e4b907ef5ab9db390b1293ba1ad5d7dd0a67e3f
https://github.com/fraunhoferhhi/vvdec/issues/402
https://www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-before-3.2.1-out-of-bounds-read-via-slice-getrefpic