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 whose pattern effect bytes keep bit 7 set, driving the decoder past the input buffer and crashing any libmodplug consumer.
History

Fri, 16 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 15 Oct 2026 22:00:00 +0000

Type Values Removed Values Added
Description 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 whose pattern effect bytes keep bit 7 set, driving the decoder past the input buffer and crashing any libmodplug consumer.
Title libmodplug through 0.8.9.1 Heap Out-of-Bounds Read via CSoundFile::ReadAMS2
First Time appeared Konstanty Bialkowski
Konstanty Bialkowski libmodplug
Weaknesses CWE-125
CPEs cpe:2.3:a:konstanty_bialkowski:libmodplug:*:*:*:*:*:*:*:*
Vendors & Products Konstanty Bialkowski
Konstanty Bialkowski libmodplug
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-15T21:43:18.348Z

Updated: 2026-10-16T14:39:25.166Z

Reserved: 2026-10-15T19:33:19.766Z

Link: CVE-2026-111271

cve-icon Vulnrichment

Updated: 2026-10-16T14:38:45.771Z

cve-icon NVD

Status : Deferred

Published: 2026-10-15T22:19:27.957

Modified: 2026-10-16T18:25:45.343

Link: CVE-2026-111271

cve-icon Redhat

No data.