CVE-2026-111154
libTiMidity through 0.2.8 Stack Out-of-Bounds Write via parse_gen in SoundFont Loader
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
libTiMidity through 0.2.8 contains a stack out-of-bounds write vulnerability in the SoundFont loader that allows attackers to corrupt stack memory via unchecked generator operators in parse_gen. Attackers can supply a crafted .sf2 file with out-of-range pgen/igen operator values to write chosen 16-bit values near the stack Layer object, causing crashes and stack memory corruption.
| CWE | CWE-787 |
| Vendor | sezero |
| Product | libtimidity |
| Published | Oct 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
sezero / libtimidity
0.2.8 ≤ 0.2.8
References
hackmd.io: https://hackmd.io/@haind-pwn/libtimidity-soundfont-generator-oper-oob-write github.com: https://github.com/sezero/libtimidity/blob/a52adf6aee2635e2a16797213a089c2180e67757/src/sndfont.c#L468-L480 github.com: https://github.com/sezero/libtimidity vulncheck.com: https://www.vulncheck.com/advisories/libtimidity-through-0.2.8-stack-out-of-bounds-write-via-parse-gen-in-soundfont-loader
Credits
HaiND from the Post and Telecommunication Institute of Technology