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.
References6
- github.com/Wohlstand/libADLMIDI
- github.com/Wohlstand/libADLMIDI/blob/99c5e03a5cf9b4fdf35b53efdd…
- github.com/Wohlstand/libADLMIDI/blob/99c5e03a5cf9b4fdf35b53efdd…
- hackmd.io/@haind-pwn/libadlmidi-notestates-note-index-stack-oob
- www.vulncheck.com/advisories/libadlmidi-1.6.2-through-1.6.2.1-s…
- hackmd.io/@haind-pwn/libadlmidi-notestates-note-index-stack-oob
Metrics
- CVSS 3.1
-
6.1
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H - CVSS 4.0
-
6.9
MEDIUM
Score source: CNA
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/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 - EPSS — exploit probability
- 0% percentile: 10 · as of 10 November 2026
- CWE
- CWE-787
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.