{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"libyal/libfvde","product":"libfvde","source":"CNA: VulnCheck","vendor":"libyal","versions":[{"lessThanOrEqual":"20260923","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-116729","cwes":["CWE-125"],"description":"libfvde through 20260923 contains a heap out-of-bounds read vulnerability in libfvde_encrypted_metadata_read_type_0x001a() caused by an unbounded strlen on embedded XML plist data. Attackers can supply a crafted FileVault 2 volume with non-NUL-terminated plist data, causing libfvde_volume_open() to read past the heap block buffer.","epss":{"date":"2026-11-02","percentile":0.02772,"score":0.00132},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://hackmd.io/@haindpwn/libfvde-encrypted-metadata-oob-read"}],"kev":null,"metrics":[{"score":4.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},{"score":3.3,"severity":"low","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1793643810662,"publishedAt":1793051551564,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/libyal/libfvde/issues/70"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/libyal/libfvde"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/libyal/libfvde/commit/c2676fe49d0da44d66e7d750e72c57d2670f0b8f"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/libyal/libfvde/blob/20260923/libfvde/libfvde_encrypted_metadata.c#L2786-L2792"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://hackmd.io/@haindpwn/libfvde-encrypted-metadata-oob-read"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/libfvde-through-20260923-heap-out-of-bounds-read-via-libfvde-encrypted-metadata-read-type-0x001a"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://hackmd.io/@haindpwn/libfvde-encrypted-metadata-oob-read"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/libyal/libfvde/commit/c2676fe49d0da44d66e7d750e72c57d2670f0b8f"}],"revision":"f2699142ef1588e6b07a7956170b1efa59b30edfff173314d07743dd19ebf106","sources":[{"modifiedAt":1793643810662,"name":"CNA: VulnCheck","retrievedAt":1793646533247,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116729"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793646542788,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116729"}],"ssvc":{"assessedAt":1793643710558,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"libfvde through 20260923 Heap Out-of-Bounds Read via libfvde_encrypted_metadata_read_type_0x001a","updatedAt":1793646542788}