Medium severity6.1NVD Advisory· Published Oct 26, 2026
CVE-2026-116731
CVE-2026-116731
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.
Affected products
1- Range: <=0.6.8.3
Patches
Vulnerability mechanics
References
5- github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cppnvd
- github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693nvd
- github.com/tildearrow/furnace/issues/2966nvd
- hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oobnvd
- www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-write-via-famitracker-grooves-block-importnvd
News mentions
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