Medium severity5.8NVD Advisory· Published Nov 7, 2026
CVE-2026-124308
CVE-2026-124308
Description
Fraunhofer HHI VVdeC before 3.2.1 contains a heap use-after-free vulnerability in DecLibRecon::createSubPicRefBufs because decompressPicture clears m_subPicExtTasks without waiting for pending tasks. Attackers can supply a crafted multi-subpicture VVC bitstream to decoders using two or more threads, causing heap memory corruption or a decoder crash.
Affected products
1- Range: <3.2.1
Patches
Vulnerability mechanics
References
6- github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibRecon.cppnvd
- github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibRecon.cppnvd
- github.com/fraunhoferhhi/vvdec/commit/8a0def8ba6050412d33e69a6f1e66e287b039083nvd
- github.com/fraunhoferhhi/vvdec/issues/392nvd
- github.com/fraunhoferhhi/vvdec/issues/403nvd
- www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-before-3.2.1-use-after-free-via-declibrecon-createsubpicrefbufsnvd
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