CVE-2026-124309: medium-severity vulnerability in fraunhoferhhi vvdec
Fraunhofer HHI VVdeC before 3.2.1 Heap Out-of-Bounds Read via SEIReader::xParseSEIScalableNesting
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
10Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9
Fraunhofer HHI VVdeC before 3.2.1 contains a heap out-of-bounds read vulnerability in SEIReader::xParseSEIScalableNesting that allows attackers to read past heap allocations by casting the SEI wrapper object instead of its payload. Attackers can supply a crafted VVC bitstream with a scalable nesting SEI containing a nested buffering period SEI to crash the decoder or copy adjacent heap memory.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
fraunhoferhhi · vvdecRelated CVEs — fraunhoferhhi vvdec
In the same product, most dangerous first.
CVE-2026-124312MEDIUMFraunhofer HHI VVdeC through 3.2.1 Heap Out-of-Bounds Read via CodingStructure::getColInfoEPSS —CVE-2026-124311MEDIUMFraunhofer HHI VVdeC through 3.2.1 NULL Pointer Dereference via InterPrediction::xPredInterBlkEPSS —CVE-2026-124310MEDIUMFraunhofer HHI VVdeC before 3.2.1 Out-of-Bounds Read via Slice::getRefPicEPSS —CVE-2026-124308MEDIUMFraunhofer HHI VVdeC before 3.2.1 Use-After-Free via DecLibRecon::createSubPicRefBufsEPSS —CVE-2026-124307MEDIUMFraunhofer HHI VVdeC before 3.2.1 Heap Use-After-Free via ALF APS RedefinitionEPSS —
References
https://github.com/fraunhoferhhi/vvdechttps://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/Slice.h#L644https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/SEIread.cpp#L586-L592https://github.com/fraunhoferhhi/vvdec/commit/1d657c7a822987d2ff935e9c227c5faf5318ca06https://github.com/fraunhoferhhi/vvdec/issues/397https://www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-before-3.2.1-heap-out-of-bounds-read-via-seireader-xparseseiscalablenesting