CVE-2026-124307 | BDVDB-2026-401796 Detail
fraunhoferhhivvdec
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.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact high. Attack vector: local.
Weaknesses#
- CWE-416 Use After Free
References#
- https://github.com/fraunhoferhhi/vvdec/issues/391
- https://github.com/fraunhoferhhi/vvdec/issues/390
- https://github.com/fraunhoferhhi/vvdec/commit/1eddb30c4b8e02f3d13ba24aa7e52f1aa7b08c01
- https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/Slice.h#L2570
- https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/ParameterSetManager.h#L97
- https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/CABACReader.cpp#L428-L429
- https://github.com/fraunhoferhhi/vvdec
- https://www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-before-3.2.1-heap-use-after-free-via-alf-aps-redefinition
- http://www.openwall.com/lists/oss-security/2026/11/09/21
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.