CVE-2026-110876 AdPlug through 2.4 Out-of-Bounds Read via CxsmPlayer::play_note in XSM Files
Attackers can cause crashes or read sensitive memory by crafting malicious XSM files processed by the AdPlug 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-2026-110876?
CVE-2026-110876 is a medium-severity memory corruption vulnerability in adplug, 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
AdPlug through 2.4 contains an out-of-bounds read vulnerability in src/xsm.cpp that allows attackers to read before note_table by supplying a negative note index. Attackers can craft an XSM file with the ofTAZ! signature and a song byte of 0x80 or higher, causing a global-buffer-overflow read during playback that may crash affected applications.
Weakness: CWE-125
Which versions are affected by CVE-2026-110876?
How do I fix CVE-2026-110876?
No fix has been published for CVE-2026-110876 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-2026-110876 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110876 exists.
Sources
Also known as DEBIAN-CVE-2026-110876, GHSA-5f64-5878-cg28, UBUNTU-CVE-2026-110876.