Heap out-of-bounds read in Fraunhofer HHI VVdeC decoder
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
Fraunhofer HHI VVdeC through 3.2.1 contains a heap out-of-bounds read (CWE-125) in CodingStructure::getColInfo. A local attacker with user interaction can crash the decoder by supplying a crafted VVC bitstream that enables TMVP with a smaller collocated reference picture when error concealment is enabled.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Description from the CNA
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| fraunhoferhhi | vvdec | up to 3.2.1 | — | No fix listed | CNA |
- vvdec Vendorfraunhoferhhi Affected up to 3.2.1 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for VVdeC.
Written with Claude Haiku 5.5 from the sources below · 2026-11-07
Timeline
- 2026-11-07 Threatist record created from CVE-2026-124312
- 2026-11-07 Alias added: GHSA-fcm3-84wv-3v4w
References
Sources
- CVE-2026-124312 · CVE Program
- CVE-2026-124312 · NVD
- GHSA-fcm3-84wv-3v4w · GitHub Advisory Database · CC BY 4.0
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