Buffer overflow in Wohlstand Libadlmidi
CVE-2026-111161
libADLMIDI 1.6.2 through 1.6.2.1 contains an off-by-one stack out-of-bounds write vulnerability in BW_MidiSequencer that allows attackers to corrupt stack memory via crafted MIDI files. Attackers can supply a MIDI file with a note-on using status 0x9F and note 0x7F through adl_openFile() or adl_openData() to crash the hosting media player or game engine.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haind-pwn/libadlmidi-notestates-note-index-stack-oob (technical-description)
- github.com/Wohlstand/libADLMIDI/blob/99c5e03a5cf9b4fdf35b53efddb853c96320d50f/s… (technical-description)
- github.com/Wohlstand/libADLMIDI/blob/99c5e03a5cf9b4fdf35b53efddb853c96320d50f/s… (technical-description)
- github.com/Wohlstand/libADLMIDI (product)
- www.vulncheck.com/advisories/libadlmidi-1.6.2-through-1.6.2.1-stack-out-of-boun… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111161?
- CVE-2026-111161 is a medium-severity vulnerability in Wohlstand Libadlmidi, classified under Out-of-bounds Write. CVSS score: 6.1/10. Published 2026-10-15.
- How severe is CVE-2026-111161?
- Medium severity. CVSS v3 base score is 6.1 out of 10.