{"schema":"threatline.record/2","record":{"id":"CVE-2026-111131","aliases":[],"summary":"libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker","details":"libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.","categories":["Unclassified"],"product":"libxmp","vendor":"libxmp","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111131","source_modified_at":"2026-10-15T19:50:44.959Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"libxmp","vendor":"libxmp","versions":[{"version":"0","lessThanOrEqual":"4.7.4","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.002,"percentile":0.09407,"score_date":"2026-10-23"},"published_at":"2026-10-15T18:57:26.487Z","modified_at":"2026-10-15T19:50:44.959Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111131","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T19:50:44.959Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111131","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/libxmp-p61a-sample-backreference-oob-read","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L110-L116","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L638-L641","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/libxmp/libxmp","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/libxmp-through-4.7.4-stack-out-of-bounds-read-via-p61a-depacker","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":"2026-10-15T19:48:49.361100Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T19:50:44.959Z","content_hash":"a08042640aab0d2fa978f6775ded3c5d45859330eba8904839fe47a539337a5f"}}