{"id":"CVE-2026-124309","published":"2026-11-07T15:17:14.653","lastModified":"2026-11-11T05:19:36.170","description":"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.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://github.com/fraunhoferhhi/vvdec","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/Slice.h#L644","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/SEIread.cpp#L586-L592","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/commit/1d657c7a822987d2ff935e9c227c5faf5318ca06","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/issues/397","tags":[]},{"url":"https://www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-before-3.2.1-heap-out-of-bounds-read-via-seireader-xparseseiscalablenesting","tags":[]}],"exploitRefs":[{"url":"https://github.com/fraunhoferhhi/vvdec","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/CommonLib/Slice.h#L644","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/SEIread.cpp#L586-L592","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/commit/1d657c7a822987d2ff935e9c227c5faf5318ca06","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/issues/397","tags":[]}],"hasPoc":true,"ai":null}