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TI-2026-74940 Aliases CVE-2026-111156

Out-of-bounds access in libTiMidity via crafted SoundFont files

Priority MEDIUM 64CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

libTiMidity through 0.2.8 is affected. The init_soundfont() function in src/sndfont.c does not validate bank and preset values from SF2 preset headers, which allows out-of-bounds writes (CWE-787). An attacker who supplies a crafted .sf2 file can corrupt heap memory and crash the application. A public exploit is linked in the references.

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

Description from the CNA

libTiMidity through 0.2.8 contains an out-of-bounds access vulnerability in init_soundfont() in src/sndfont.c that allows attackers to corrupt memory by supplying unvalidated SF2 preset header bank and preset values. Attackers can craft a .sf2 file whose bank or preset indexes past the 128-entry tonebank or drumset arrays, causing heap memory reads, writes, and application crashes.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00128 2nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
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
sezerolibtimidity0.2.8 – 0.2.8—No fix listedCNA
  • libtimidity Vendorsezero Affected 0.2.8 – 0.2.8 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for libtimidity.

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-2026-111156
  2. 2026-10-16 Affected versions changed · Red Hat
  3. 2026-10-16 CVSS score added · Red Hat

References

Exploit 1

Other 2

  • 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-2026-74949 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