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  4. CVE 2026 124307 fraunhofer hhi vvdec before 321 heap use after
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Back to active CVEs
Medium · CVSS 5.8CVE-2026-124307

Fraunhofer HHI VVdeC before 3.2.1 Heap Use-After-Free via ALF APS RedefinitionCVE-2026-124307

Answer in brief

CVE-2026-124307 records a Medium severity (CVSS 5.8) vulnerability in Fraunhofer HHI VVdeC before 3.2.1 Heap Use-After-Free via ALF APS Redefinition. The current sources do not mark it as known exploited. The current feed maps fraunhoferhhi/vvdec (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 7, 2026Updated Nov 7, 2026Source checked Nov 7, 2026First seen by HOL Nov 7, 2026Material review Nov 7, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps fraunhoferhhi/vvdec (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
fraunhoferhhi/vvdecgeneric>=0 <3.2.13.2.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for fraunhoferhhi/vvdec.
  2. 2Review the reported fix. Update fraunhoferhhi/vvdec to 3.2.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 7, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

Fraunhofer HHI VVdeC before 3.2.1 contains a heap use-after-free vulnerability that allows attackers to corrupt memory by redefining an ALF adaptation parameter set id still referenced by slices. Attackers can supply a crafted VVC bitstream that, with multithreaded decoding, makes worker threads dereference freed APS objects in CABACReader::readAlf() and AdaptiveLoopFilter::reconstructCoeff(), causing crashes or heap corruption.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Fraunhofer HHI VVdeC before 3.2.1 Use-After-Free via DecLibRecon::createSubPicRefBufsSame fraunhoferhhi/vvdec package
  • Fraunhofer HHI VVdeC before 3.2.1 Heap Out-of-Bounds Read via SEIReader::xParseSEIScalableNestingSame fraunhoferhhi/vvdec package
  • Fraunhofer HHI VVdeC before 3.2.1 Out-of-Bounds Read via Slice::getRefPicSame fraunhoferhhi/vvdec package
  • Fraunhofer HHI VVdeC through 3.2.1 NULL Pointer Dereference via InterPrediction::xPredInterBlkSame fraunhoferhhi/vvdec package
  • Fraunhofer HHI VVdeC through 3.2.1 Heap Out-of-Bounds Read via CodingStructure::getColInfoSame fraunhoferhhi/vvdec package

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-416
Source
CVE List V5
Source checked
Nov 7, 2026
References
8 linked sources
Open source record