{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"tildearrow/furnace","product":"furnace","source":"CNA: VulnCheck","vendor":"tildearrow","versions":[{"lessThanOrEqual":"0.6.8.3","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-116731","cwes":["CWE-129"],"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.","epss":{"date":"2026-11-05","percentile":0.03058,"score":0.00136},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob"}],"kev":null,"metrics":[{"score":6.9,"severity":"medium","source":"CNA: 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","version":"4.0"},{"score":6.1,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","version":"3.1"},{"score":6.9,"severity":"medium","source":"NVD: disclosure@vulncheck.com","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":6.1,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","version":"3.1"}],"modifiedAt":1793899064107,"publishedAt":1793051552953,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/tildearrow/furnace/issues/2966"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/tildearrow/furnace"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp#L1597-L1605"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-write-via-famitracker-grooves-block-import"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/tildearrow/furnace"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp#L1597-L1605"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/tildearrow/furnace/issues/2966"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-write-via-famitracker-grooves-block-import"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693"}],"revision":"7628300fe6d5c0bef470bc20c7b39702d47fc7b91b3997afcdd4a69a0804156a","sources":[{"modifiedAt":1793897333686,"name":"CNA: VulnCheck","retrievedAt":1793898662527,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116731"},{"modifiedAt":1793899064107,"name":"NVD","retrievedAt":1793902904012,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116731"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793898687051,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116731"}],"ssvc":{"assessedAt":1793897321014,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Furnace through 0.6.8.3 Out-of-Bounds Write via FamiTracker GROOVES Block Import","updatedAt":1793902904012}