CVE-2026-110875: Memory Corruption (CVSS 6.1)

Description

AdPlug through 2.4 contains a heap-based buffer overflow in CksmPlayer::update() in src/ksm.cpp that writes past the fixed databuf[2048] array without bounds checking. Attackers can supply a crafted .ksm module whose notes share one time slot to overflow the heap player object, causing memory corruption and denial of service.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

References

Other References

https://github.com/adplug/adplug https://github.com/adplug/adplug/blob/e491e382479ed2246f124c96c70d94561dce59b9/src/ksm.cpp#L99-L229 https://github.com/adplug/adplug/issues/292 https://github.com/adplug/adplug/pull/295 https://hackmd.io/@haind-pwn/adplug-ksm-note-loop-databuf-oob-write https://www.vulncheck.com/advisories/adplug-through-2.4-heap-buffer-overflow-via-cksmplayer-update-in-ksm-cpp

Frequently Asked Questions

What is CVE-2026-110875? +

AdPlug through 2.4 contains a heap-based buffer overflow in CksmPlayer::update() in src/ksm.cpp that writes past the fixed databuf[2048] array without bounds checking. Attackers can supply a crafted .ksm module whose notes share one time slot to overflow the heap player object, causing memory corruption and denial of service. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2026-110875? +

CVE-2026-110875 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-110875? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-110875