{"schema":"threatline.record/2","record":{"id":"CVE-2026-111136","aliases":[],"summary":"libInstPatch through 1.1.7 Heap Out-of-Bounds Write via ipatch_sf2_gen_is_valid","details":"libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.","categories":["Unclassified"],"product":"libinstpatch","vendor":"swami","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111136","source_modified_at":"2026-10-15T19:48:10.296Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"libinstpatch","vendor":"swami","versions":[{"version":"0","lessThanOrEqual":"1.1.7","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00198,"percentile":0.09066,"score_date":"2026-10-23"},"published_at":"2026-10-15T18:57:29.888Z","modified_at":"2026-10-15T19:48:10.296Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111136","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T19:48:10.296Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111136","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/libinstpatch-sf2-generator-id-oob-write","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libinstpatch/IpatchSF2Gen.c#L189-L205","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libinstpatch/IpatchSF2Reader.c#L1355-L1370","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libinstpatch/IpatchSF2Reader.c#L954-L969","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/swami/libinstpatch","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/libinstpatch-through-1.1.7-heap-out-of-bounds-write-via-ipatch-sf2-gen-is-valid","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":"2026-10-15T19:47:44.671476Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T19:48:10.296Z","content_hash":"822698f5692ae6633a22a0f1eb68e0e9ca68076d265bbe35e9f5bdc80c7579d8"}}