{"id":"CVE-2026-124308","published":"2026-11-07T15:17:14.487","lastModified":"2026-11-10T20:19:06.790","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.","cvssScore":5.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H","cwes":["CWE-416"],"vendors":[],"products":[],"references":[{"url":"https://github.com/fraunhoferhhi/vvdec","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibRecon.cpp#L405-L420","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibRecon.cpp#L538-L542","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/commit/8a0def8ba6050412d33e69a6f1e66e287b039083","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/issues/392","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/issues/403","tags":[]},{"url":"https://www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-before-3.2.1-use-after-free-via-declibrecon-createsubpicrefbufs","tags":[]},{"url":"http://www.openwall.com/lists/oss-security/2026/11/10/15","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/issues/392","tags":[]}],"exploitRefs":[{"url":"https://github.com/fraunhoferhhi/vvdec","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibRecon.cpp#L405-L420","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibRecon.cpp#L538-L542","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/commit/8a0def8ba6050412d33e69a6f1e66e287b039083","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/issues/392","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/issues/403","tags":[]},{"url":"https://github.com/fraunhoferhhi/vvdec/issues/392","tags":[]}],"hasPoc":true,"ai":null}