Out-of-bounds read in libmikmod MTM loader via channel count
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
libmikmod through 3.3.15 does not clamp the channel count in the MultiTracker loader MTM_Load(), which causes an out-of-bounds read (CWE-125). A local attacker supplies a crafted .mtm file with a channel count above 32, which makes the loader read past the static pat array. The read corrupts track indices and crashes the loading application.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
libmikmod through 3.3.15 contains a global out-of-bounds read vulnerability in the MultiTracker loader MTM_Load() because the module channel count is never clamped. Attackers can supply a crafted .mtm file with a channel count above 32 to read past the static pat array, corrupting track indices and crashing the loading application.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for libmikmod.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Vendor assessments
Timeline
- 2026-10-16 Threatist record created from CVE-2026-111165
- 2026-10-16 Priority changed: MEDIUM → LOW
- 2026-10-16 Affected versions changed · Red Hat
- 2026-10-16 CVSS score added · Red Hat
- 2026-10-21 CISA SSVC decision points changed
- 2026-10-21 Priority changed: LOW → MEDIUM
References
More sezero vulnerabilities
- TI-2026-74940 Out-of-bounds access in libTiMidity via crafted SoundFont files CVSS 4.0MEDIUM 6.9
- TI-2026-74939 Out-of-bounds read in libTiMidity SoundFont loader CVSS 4.0MEDIUM 6.9
- TI-2026-74938 Stack out-of-bounds write in libTiMidity SoundFont loader CVSS 4.0MEDIUM 6.9
- TI-2026-74950 Heap out-of-bounds read in libmikmod IMF module loader CVSS 4.0MEDIUM 6.8
- TI-2026-68422 Integer overflow in libmikmod OKT loader allows heap buffer overflow CVSS 4.0HIGH 8.5
- TI-2026-68420 libmikmod Heap Buffer Overflow via DSM Loader Integer Overflow CVSS 4.0HIGH 8.5
Sources
- CVE-2026-111165 · CVE Program
- CVE-2026-111165 · NVD
- FIRST EPSS
- CVE-2026-111165 · Red Hat security data · CC BY 4.0
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