{"id":"CVE-2026-111271","title":"libmodplug through 0.8.9.1 contains a heap-based out-of-bounds read vulnerability in CSoundFile::ReadAMS2() in src/load_ams.cpp that allows attackers to read adjacent heap memory via crafted AMS files","summary":"libmodplug through 0.8.9.1 contains a heap-based out-of-bounds read vulnerability in CSoundFile::ReadAMS2() in src/load_ams.cpp that allows attackers to read adjacent heap memory via crafted AMS files. Attackers can supply an AMS module …","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-125"],"vendor":"Red Hat","product":"libmodplug","affected":["libmodplug <= 0.8.9.1"],"published":"2026-10-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:25:45.343","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-111271","references":[{"url":"https://github.com/Konstanty/libmodplug","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Konstanty/libmodplug/blob/d1b97ed0020bc620a059d3675d1854b40bd2608d/src/load_ams.cpp#L509-L537","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/libmodplug-dsm-pattern-oob-write","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/libmodplug-through-0.8.9.1-heap-out-of-bounds-read-via-csoundfile-readams2","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/libmodplug-dsm-pattern-oob-write","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111271.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-111271"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-111271"}],"tags":["nvd","csaf","vex","red-hat","cve.org","exploit-available"],"epss":0.00195,"epssPercentile":0.0912,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-16T14:37:44.364806Z"},"ingestedAt":"2026-10-15T22:48:25.446Z","slug":"CVE-2026-111271","body":"## Overview\n\nlibmodplug through 0.8.9.1 contains a heap-based out-of-bounds read vulnerability in CSoundFile::ReadAMS2() in src/load_ams.cpp that allows attackers to read adjacent heap memory via crafted AMS files. Attackers can supply an AMS module whose pattern effect bytes keep bit 7 set, driving the decoder past the input buffer and crashing any libmodplug consumer.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111271.json)","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":223052,"id":"CVE-2026-111271","ts":1792164081289,"field":"exploit_available","old":"false","new":"true"}]}