CVE-2026-124312 Fraunhofer HHI VVdeC through 3.2.1 Heap Out-of-Bounds Read via CodingStructure::getColInfo
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124312?
CVE-2026-124312 is a medium-severity vulnerability in fraunhoferhhi vvdec, published on 7 Nov 2026.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-124312?
How do I fix CVE-2026-124312?
No fix has been published for CVE-2026-124312 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124312 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-124312 exists.
Sources
Also known as GHSA-fcm3-84wv-3v4w.