{"id":"CVE-2026-116731","aliases":[],"title":"Furnace through 0.6.8.3 Out-of-Bounds Write via FamiTracker GROOVES Block Import","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"tildearrow","name":"furnace","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.6.8.3","versionType":"custom"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-116731"}],"remediation":[],"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opened.","severity":"medium","score":6.9,"published":"2026-10-26T21:52:32.953Z","modified":"2026-10-26T21:52:32.953Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/tildearrow/furnace/issues/2966","https://github.com/tildearrow/furnace","https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693","https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp#L1597-L1605","https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob","https://www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-write-via-famitracker-grooves-block-import"],"sources":[{"name":"CVE","id":"CVE-2026-116731","modified":"2026-10-26T21:52:32.953Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116731"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","score":6.9},{"source":"VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","score":6.1}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T22:10:31.402Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}