CVE-2026-110876
AdPlug through 2.4 Out-of-Bounds Read via CxsmPlayer::play_note in XSM Files
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 15, 2026
- Updated
- Oct 21, 2026
- Reserved
- Oct 14, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
adplugadplug |
|
References
- https://hackmd.io/@haind-pwn/adplug-ksm-note-loop-databuf-oob-writetechnical-descriptionexploit
- https://github.com/adplug/adplug/blob/e491e382479ed2246f124c96c70d94561dce59b9/src/xsm.cpp#L86-L134technical-description
- https://github.com/adplug/adplugproduct
- VulnCheck Advisory: AdPlug through 2.4 Out-of-Bounds Read via CxsmPlayer::play_note in XSM Filesthird-party-advisory
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