Read the docs
TI-2026-74950 Aliases CVE-2026-111166

Heap out-of-bounds read in libmikmod IMF module loader

Priority MEDIUM 63CWE-125Published · Updated

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 from sezero contains a heap out-of-bounds read in the IMF_Load() loader (CWE-125). A crafted IMF module with out-of-range note mappings makes the loader index far past the heap allocation, which crashes applications that load the file. An attacker needs a user to open the crafted module.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

libmikmod through 3.3.15 contains a heap out-of-bounds read vulnerability in the IMF_Load() loader that allows attackers to read beyond allocated memory by supplying a crafted IMF module. Attackers can enable the linear-period header flag and map notes to out-of-range samples, causing noteindex indexing far past the heap allocation and crashing applications that load the file.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00195 9th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
sezerolibmikmodup to 3.3.15—No fix listedCNA
  • libmikmod Vendorsezero Affected up to 3.3.15 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for libmikmod.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111166
  2. 2026-10-16 Affected versions changed · Red Hat
  3. 2026-10-16 CVSS score added · Red Hat

References

Other 3

  • 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-2026-74949 Out-of-bounds read in libmikmod MTM loader via channel count 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
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences