Vulnerability in Fraunhoferhhi Vvdec
CVE-2026-124310
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.
Published .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/fraunhoferhhi/vvdec (product)
- github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/InterPrediction… (technical-description)
- github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/Slice.h (technical-description)
- github.com/fraunhoferhhi/vvdec/commit/32b842c10bf024f09bc7cf1445fa6f8a987422ca (patch)
- github.com/fraunhoferhhi/vvdec/commit/6e4b907ef5ab9db390b1293ba1ad5d7dd0a67e3f (patch)
- github.com/fraunhoferhhi/vvdec/issues/402 (issue-tracking)
- www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-before-3.2.1-out-of-bounds-re… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-124310?
- CVE-2026-124310 is a medium-severity vulnerability in Fraunhoferhhi Vvdec, classified under Improper Validation of Array Index. CVSS score: 6.1/10. Published 2026-11-07.
- How severe is CVE-2026-124310?
- Medium severity. CVSS v3 base score is 6.1 out of 10.