{"schema":"threatline.record/2","record":{"id":"CVE-2026-116731","aliases":[],"summary":"Furnace through 0.6.8.3 Out-of-Bounds Write via FamiTracker GROOVES Block Import","details":"Furnace through 0.6.8.3 contains an out-of-bounds write vulnerability in DivEngine::loadFTM() that allows attackers to corrupt heap memory via an unchecked subsong index in the GROOVES block. Attackers can craft a FamiTracker module with a subsong count of 2 or more to write a groove pattern past the subsong vector, crashing Furnace when opened.","categories":["Unclassified"],"product":"furnace","vendor":"tildearrow","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116731","source_modified_at":"2026-10-26T21:52:32.953Z","fetched_at":"2026-10-26T23:45:56.352924Z","product":"furnace","vendor":"tildearrow","versions":[{"version":"0","status":"affected","versionType":"custom","lessThanOrEqual":"0.6.8.3"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-26T21:52:32.953Z","modified_at":"2026-10-26T21:52:32.953Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116731","fetched_at":"2026-10-26T23:45:56.352924Z","source_modified_at":"2026-10-26T21:52:32.953Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/tildearrow/furnace/issues/2966","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/tildearrow/furnace","tags":["product"]},{"source":"CVE List","url":"https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693","tags":["patch"]},{"source":"CVE List","url":"https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp#L1597-L1605","tags":["technical-description"]},{"source":"CVE List","url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-write-via-famitracker-grooves-block-import","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-26T21:52:32.953Z","content_hash":"86229ffdbfb0b1d392956822140dbfcf72efe7699bd4a4ac9144156839b98fe9"}}