CVE-2026-111163: Out-of-bounds Read in Mindwerks WildMIDI
Description
WildMIDI through 0.5.0 contains a heap out-of-bounds read vulnerability in _WM_ParseNewHmi() in src/f_hmi.c that reads past buffers when handling 0xfe sub-events. Attackers can supply a crafted HMI file placing a 0xfe 0x10 sub-event near the buffer end to read up to four bytes past the allocation, crashing the decoding application.
CVSS v4.0
Score 6.8medium
Affected software
Mindwerks
WildMIDI
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-111163 is a heap out-of-bounds read vulnerability in WildMIDI through version 0.5.0, specifically in the _WM_ParseNewHmi() function located in src/f_hmi.c. The issue arises when handling 0xfe sub-events in HMI files, where an attacker can craft a file placing a 0xfe 0x10 sub-event near the end of a buffer, causing the function to read up to four bytes past the allocated memory. This can lead to application crashes during decoding.
Potential Impact
An attacker can cause the WildMIDI decoding application to crash by supplying a maliciously crafted HMI file. The vulnerability does not indicate code execution or data corruption beyond the out-of-bounds read and crash. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, avoid processing untrusted or suspicious HMI files with WildMIDI to mitigate potential crashes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-15T17:04:04.463Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad123ba2cdf04f65652b721
Added to database: 10/15/2026, 19:04:26 UTC
Last enriched: 10/15/2026, 19:34:04 UTC
Last updated: 10/15/2026, 20:04:10 UTC
Views: 7
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