CVE-2026-111161 libADLMIDI 1.6.2 through 1.6.2.1 Stack Out-of-Bounds Write via BW_MidiSequencer noteStates
Attackers can cause stack corruption and potential code execution in applications using libADLMIDI by providing crafted MIDI files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-111161?
CVE-2026-111161 is a medium-severity memory corruption vulnerability in Wohlstand libADLMIDI, published on 15 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-787
Which versions are affected by CVE-2026-111161?
How do I fix CVE-2026-111161?
No fix has been published for CVE-2026-111161 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-111161 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111161 exists.
Sources
Also known as GHSA-rxj4-pqxj-5j52.