CVE-2026-111150 ValleyBell libvgm through commit a6eed945 Heap Out-of-Bounds Read via DecompressDataBlk
Attackers can cause a denial of service via heap out-of-bounds read in libvgm by supplying a crafted .vgm file to applications using the 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
- None listed
What is CVE-2026-111150?
CVE-2026-111150 is a medium-severity memory corruption vulnerability in ValleyBell libvgm, 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
ValleyBell libvgm through commit a6eed945 contains a heap out-of-bounds read vulnerability in the PCM data-block decompressor caused by an unbounded compression-table index. Attackers can supply a crafted .vgm file with a small type 0x7F table and wider compressed values, causing DecompressDataBlk to over-read heap memory and crash consumers.
Weakness: CWE-125
Which versions are affected by CVE-2026-111150?
How do I fix CVE-2026-111150?
No fix has been published for CVE-2026-111150 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-111150 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111150 exists.
Sources
Also known as GHSA-62fq-82w3-44j3.