{"id":"CVE-2026-88373","title":"libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path","summary":"libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequentl…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"published":"2026-09-24","updated":"2026-09-25","sourceUpdated":"2026-09-25T18:17:31.937","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88373","references":[{"url":"https://github.com/strukturag/libde265/commit/f8d324914e43d92af23614f22959cf9eee7bf9ea","label":"cve@mitre.org"},{"url":"https://github.com/strukturag/libde265/issues/534","label":"cve@mitre.org"},{"url":"https://github.com/strukturag/libde265/issues/534","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-25T17:24:11.917709Z"},"ingestedAt":"2026-09-24T16:47:15.850Z","epss":0.00155,"epssPercentile":0.03939,"slug":"CVE-2026-88373","body":"## Overview\n\nlibde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequently passed as the destination argument to memcpy() in NAL_unit::set_data(). Although the copy length is zero, this violates the nonnull requirement of memcpy() and results in undefined behavior, causing process termination in UBSan-instrumented builds and denial of service.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":211129,"id":"CVE-2026-88373","ts":1790360127545,"field":"exploit_available","old":"false","new":"true"},{"seq":211128,"id":"CVE-2026-88373","ts":1790360127545,"field":"cvss","old":null,"new":"7.5"},{"seq":211127,"id":"CVE-2026-88373","ts":1790360127545,"field":"severity","old":"none","new":"high"}]}