{"id":"CVE-2026-116731","state":"PUBLISHED","title":"Furnace through 0.6.8.3 Out-of-Bounds Write via FamiTracker GROOVES Block Import","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.","publishedAt":"2026-10-26T21:52:32.953Z","updatedAt":"2026-10-26T21:52:32.953Z","severity":{"score":6.9,"label":"Medium","version":"4.0","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","source":"VulnCheck"},"assigner":"VulnCheck","products":["tildearrow furnace"],"affected":[{"vendor":"tildearrow","product":"furnace","packageURL":"pkg:github/tildearrow/furnace","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.6.8.3","versionType":"custom"}],"repo":"https://github.com/tildearrow/furnace"}],"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"],"weaknesses":["CWE-129"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116731.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116731","state":"PUBLISHED","datePublished":"2026-10-26T21:52:32.953Z","dateUpdated":"2026-10-26T21:52:32.953Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-26T20:23:35.128Z"},"containers":{"cna":{"title":"Furnace through 0.6.8.3 Out-of-Bounds Write via FamiTracker GROOVES Block Import","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"tildearrow","product":"furnace","packageURL":"pkg:github/tildearrow/furnace","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.6.8.3","versionType":"custom"}],"repo":"https://github.com/tildearrow/furnace"}],"references":[{"url":"https://github.com/tildearrow/furnace/issues/2966","tags":["issue-tracking"],"name":"GitHub Issue #2966"},{"url":"https://github.com/tildearrow/furnace","tags":["product"]},{"url":"https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693","tags":["patch"]},{"url":"https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp#L1597-L1605","tags":["technical-description"]},{"url":"https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob","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","name":"VulnCheck Advisory: Furnace through 0.6.8.3 Out-of-Bounds Write via FamiTracker GROOVES Block Import","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-129","lang":"en","description":"Improper Validation of Array Index","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-26T21:52:32.953Z"},"datePublic":"2026-10-22T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:tildearrow:furnace:*:*:*:*:*:*:*:*","versionEndIncluding":"0.6.8.3"}]}]}],"credits":[{"lang":"en","value":"HaiND from the Post and Telecommunication Institute of Technology","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}