CVE-2026-111166 libmikmod through 3.3.15 Heap Out-of-Bounds Read via IMF_Load
Attackers can cause application crashes or leak memory by supplying a crafted IMF module to libmikmod, affecting applications using this audio library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-111166?
CVE-2026-111166 is a medium-severity memory corruption vulnerability in sezero libmikmod, published on 15 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-111166?
How do I fix CVE-2026-111166?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-111166 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111166 exists.
Sources
Also known as AZL-108266, DEBIAN-CVE-2026-111166, GHSA-pcxh-23x2-w962, UBUNTU-CVE-2026-111166.