{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"mmitch/gbsplay","product":"gbsplay","source":"CNA: VulnCheck","vendor":"mmitch","versions":[{"lessThanOrEqual":"0.0.103","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-116727","cwes":["CWE-125"],"description":"gbsplay through 0.0.103 contains a heap out-of-bounds read vulnerability in vgm_open() in gbs.c that walks the VGM command stream without bounds checks. Attackers can supply a crafted VGM file with wait opcodes and no 0x66 terminator to read past the heap buffer and crash the player.","epss":{"date":"2026-11-05","percentile":0.02816,"score":0.00132},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read"}],"kev":null,"metrics":[{"score":4.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},{"score":3.3,"severity":"low","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"},{"score":4.8,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/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":3.3,"severity":"low","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1793899063957,"publishedAt":1793051550198,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/mmitch/gbsplay/issues/201"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/mmitch/gbsplay"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/mmitch/gbsplay/commit/91b1f6df0abd3914f91caa528ec3213d731999e8"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/mmitch/gbsplay/blob/0.0.103/gbs.c#L996-L1010"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/gbsplay-through-0.0.103-heap-out-of-bounds-read-via-vgm-open-in-gbs-c"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/mmitch/gbsplay"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/mmitch/gbsplay/blob/0.0.103/gbs.c#L996-L1010"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/mmitch/gbsplay/commit/91b1f6df0abd3914f91caa528ec3213d731999e8"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/mmitch/gbsplay/issues/201"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/gbsplay-through-0.0.103-heap-out-of-bounds-read-via-vgm-open-in-gbs-c"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"url":"https://hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read"}],"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/mmitch/gbsplay/commit/91b1f6df0abd3914f91caa528ec3213d731999e8"}],"revision":"db79154e96ea066becc5773f8200e0d0b4ef151651774ed76b5b80cc569a9092","sources":[{"modifiedAt":1793897221089,"name":"CNA: VulnCheck","retrievedAt":1793898661359,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116727"},{"modifiedAt":1793899063957,"name":"NVD","retrievedAt":1793902903869,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116727"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793898687266,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116727"}],"ssvc":{"assessedAt":1793897212047,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"gbsplay through 0.0.103 Heap Out-of-Bounds Read via vgm_open in gbs.c","updatedAt":1793902903869}