{"id":"CVE-2026-116731","published":"2026-10-26T22:16:57.073","lastModified":"2026-10-26T22:16:57.073","description":"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.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","cwes":["CWE-129"],"vendors":[],"products":[],"references":[{"url":"https://github.com/tildearrow/furnace","tags":[]},{"url":"https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp#L1597-L1605","tags":[]},{"url":"https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693","tags":[]},{"url":"https://github.com/tildearrow/furnace/issues/2966","tags":[]},{"url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob","tags":[]},{"url":"https://www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-write-via-famitracker-grooves-block-import","tags":[]}],"exploitRefs":[{"url":"https://github.com/tildearrow/furnace","tags":[]},{"url":"https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp#L1597-L1605","tags":[]},{"url":"https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693","tags":[]},{"url":"https://github.com/tildearrow/furnace/issues/2966","tags":[]}],"hasPoc":true,"ai":null}