What’s Vulnerable › Vulnerabilities

CVE-2026-111166: libmikmod through 3.3.15 Heap Out-of-Bounds Read via IMF_Load

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-16
• Weakness: CWE-125

Description

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.

Affected products

• sezero libmikmod: through 3.3.15

References

• https://github.com/sezero/mikmod
• https://github.com/sezero/mikmod/blob/6e658155f7e6b394a288dac796ba572634553fad/libmikmod/loaders/load_imf.c#L702-L712
• https://hackmd.io/@haind-pwn/libmikmod-mtm-imf-loader-oob-read
• https://www.vulncheck.com/advisories/libmikmod-through-3.3.15-heap-out-of-bounds-read-via-imf-load
• https://hackmd.io/@haind-pwn/libmikmod-mtm-imf-loader-oob-read

Get alerted when CVE-2026-111166 or the next vulnerability affects your stack