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PatchSiren cyber security CVE debrief

CVE-2026-116730 tildearrow CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-10-26T21:52:32.251Z and has not been modified since then. Furnace through 0.6.8.3 contains an out-of-bounds heap read vulnerability in DivEngine::loadFTM() in src/engine/fileOps/ftm.cpp, triggered by an unbounded DPCM note count during FamiTracker module import. This vulnerability allows for a crash when opening crafted .ftm, .dnm, or 0CC/E-FamiTracker modules, potentially leading to denial of service attacks. Defenders responsible for systems or software utilizing Furnace, especially those handling audio files or modules from untrusted sources, should assess exposure and verify

Vendor
tildearrow
Product
furnace
CVSS
MEDIUM 6.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-26
Original CVE updated
2026-10-27
Advisory published
2026-10-26
Advisory updated
2026-10-27

Who should care

Defenders responsible for systems or software utilizing Furnace, especially those handling audio files or modules from untrusted sources, should assess exposure and verify the vulnerability.

Why it matters

Defenders should care about CVE-2026-116730 as it allows for a crash when opening crafted audio modules, potentially leading to denial of service attacks, and requires verification of Furnace version and exposure.

  • Crash when opening crafted .ftm, .dnm, or 0CC/E-FamiTracker modules
  • Potential for denial of service (DoS) attacks
  • Need for verification of Furnace version and exposure to crafted modules
  • Possible impact on systems or software relying on Furnace for audio processing

Technical summary

Furnace through 0.6.8.3 contains an out-of-bounds heap read vulnerability in DivEngine::loadFTM() in src/engine/fileOps/ftm.cpp, triggered by an unbounded DPCM note count during FamiTracker module import. The vulnerability allows for a crash when opening crafted .ftm, .dnm, or 0CC/E-FamiTracker modules, potentially leading to denial of service attacks. Attackers can craft a .ftm, .dnm or 0CC/E-FamiTracker module with a 2A03 instrument note count above 120 to read past the noteMap array and crash Furnace when opened. Defenders should prioritize verifying the vulnerability in Furnace versions up to 0.6.8.3 and assessing exposure, as the issue allows for a crash when opening a crafted .ftm, .dnm, or 0CC/E-Fami

Defensive priority

Defenders should prioritize verifying the vulnerability in Furnace versions up to 0.6.8.3 and assessing exposure, as the issue allows for a crash when opening a crafted .ftm, .dnm, or 0CC/E-FamiTracker module.

Recommended defensive actions

  • Verify Furnace versions up to 0.6.8.3 for vulnerability to out-of-bounds read
  • Assess exposure to crafted .ftm, .dnm, or 0CC/E-FamiTracker modules
  • Implement compensating controls to prevent exploitation
  • Monitor for updates from the vendor on a patch or mitigation
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and source item provide details on the out-of-bounds heap read vulnerability in Furnace through 0.6.8.3, which can be triggered by an unbounded DPCM note count during FamiTracker module import.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-116730 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-116730

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-116730 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-116730

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Furnace through 0.6.8.3 Out-of-Bounds Read via FamiTracker Module Import

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/116xxx/CVE-2026-116730.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://github.com/tildearrow/furnace/issues/2966

    Supplemental source - issue-tracking

  • Source reference

    Unverified legacy reference

    URL: https://github.com/tildearrow/furnace

    Supplemental source - product

  • Source reference

    Unverified legacy reference

    URL: https://github.com/tildearrow/furnace/commit/c120c72391e3229fe258e5759f43427febcb8693

    Supplemental source - patch

  • Source reference

    Unverified legacy reference

    URL: https://github.com/tildearrow/furnace/blob/v0.6.8.3/src/engine/fileOps/ftm.cpp

    Supplemental source - technical-description

  • Source reference

    Unverified legacy reference

    URL: https://hackmd.io/@haindpwn/furnace-ftm-import-notemap-and-groove-subsong-oob

    Supplemental source - third-party-advisory

  • Source reference

    Unverified legacy reference

    URL: https://www.vulncheck.com/advisories/furnace-through-0.6.8.3-out-of-bounds-read-via-famitracker-module-import

    Supplemental source - third-party-advisory

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.