---
id: CVE-2026-110875
title: >-
  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
summary: >-
  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…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'
cwe:
  - CWE-787
vendor: adplug
product: adplug
affected:
  - adplug <= 2.4
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:24.530'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110875'
references:
  - url: 'https://github.com/adplug/adplug'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/adplug/adplug/blob/e491e382479ed2246f124c96c70d94561dce59b9/src/ksm.cpp#L99-L229
    label: disclosure@vulncheck.com
  - url: 'https://github.com/adplug/adplug/issues/292'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/adplug/adplug/pull/295'
    label: disclosure@vulncheck.com
  - url: 'https://hackmd.io/@haind-pwn/adplug-ksm-note-loop-databuf-oob-write'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/adplug-through-2.4-heap-buffer-overflow-via-cksmplayer-update-in-ksm-cpp
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T19:25:46.405Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.