CVE-2026-111162
WildMIDI through 0.5.0 Heap Out-of-Bounds Read via _WM_ParseNewHmp
Mindwerks WildMIDI
CVSS
6.9MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.13%Chance of exploitation activity in the next 30 days, higher than 2% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
WildMIDI through 0.5.0 contains a heap out-of-bounds read vulnerability in the HMP parser _WM_ParseNewHmp() that allows attackers to read beyond buffers via underflowed chunk lengths. Attackers can supply a crafted .hmp file with a chunk length of 0-12 that wraps to roughly 4 GB, crashing applications or exposing heap bytes through WildMidi_GetInfo().
Text from CVE List
Affected versions 1
- WildMIDIaffected: all versions through 0.5.0CVE List
References 5
- vulncheck.com/advisories/wildmidi-through-0.5.0-heap-out-of-bounds-read-via-wm-parsenewhmpAdvisoryvia CVE List
- hackmd.io/@haind-pwn/wildmidi-hmp-chunk-length-underflow-oob-readReferencevia CVE List
- github.com/Mindwerks/wildmidi/blob/340472ed4633d139d30c660b90eca03c1320e593/src/f_hmp.c#L258-L261Referencevia CVE List
- github.com/Mindwerks/wildmidi/blob/340472ed4633d139d30c660b90eca03c1320e593/src/internal_midi.c#L2166-L2172Referencevia CVE List
- github.com/Mindwerks/wildmidiReferencevia CVE List