{"schema":"threatline.record/2","record":{"id":"CVE-2026-111133","aliases":[],"summary":"libfsapfs through 20260921 Heap Out-of-Bounds Read via libfsapfs_key_encrypted_key_read_data","details":"libfsapfs through 20260921 contains an integer underflow in libfsapfs_key_encrypted_key_read_data() that allows attackers to trigger heap out-of-bounds reads via crafted KEK attributes. Attackers can supply a crafted encrypted APFS image with malformed HMAC or wrapped KEK attribute lengths to crash fsapfsinfo, pyfsapfs, dfVFS or plaso and read adjacent heap memory before password checks.","categories":["Unclassified"],"product":"libfsapfs","vendor":"libyal","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111133","source_modified_at":"2026-10-15T19:45:11.041Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"libfsapfs","vendor":"libyal","versions":[{"version":"0","lessThanOrEqual":"20260921","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.002,"percentile":0.09406,"score_date":"2026-10-23"},"published_at":"2026-10-15T18:57:27.812Z","modified_at":"2026-10-15T19:45:11.041Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111133","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T19:45:11.041Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111133","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@haind-pwn/libfsapfs-key-encrypted-key-attribute-oob-read","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/libyal/libfsapfs/blob/4c7c1c21f3cfc7d35f0b34b8a47f1f1562d27bbb/libfsapfs/libfsapfs_key_encrypted_key.c#L321-L333","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/libyal/libfsapfs/blob/4c7c1c21f3cfc7d35f0b34b8a47f1f1562d27bbb/libfsapfs/libfsapfs_key_encrypted_key.c#L528-L540","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/libyal/libfsapfs","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/libfsapfs-through-20260921-heap-out-of-bounds-read-via-libfsapfs-key-encrypted-key-read-data","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T19:44:48.953662Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T19:45:11.041Z","content_hash":"4c91001c6571d97e05b18cdd4d19299447037a9ce130a25388b14073ba33fa04"}}