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CVE-2026-110875— AdPlug through 2.4 Heap Buffer Overflow via CksmPlayer::update in ksm.cpp

Quick assessment

Affected
adplug adplug
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AdPlug 2.4 及更早版本存在一个堆缓冲区溢出漏洞。该漏洞位于 src/ksm.cpp 文件中的 CksmPlayer::update() 函数内，在向固定大小的 databuf[2048] 数组写入数据时，缺乏边界检查，导致可以越界写入。攻击者可构造特制的 .ksm 模块文件，使其中多个音符共享同一个时隙，从而触发堆溢出，造成内存损坏和服务拒绝（DoS）。

CVSS 6.1 · Medium EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
adplug adplug ≤ 2.4 affected
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I. Basic Information for CVE-2026-110875

Vulnerability Information
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Vulnerability Title
AdPlug through 2.4 Heap Buffer Overflow via CksmPlayer::update in ksm.cpp
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
adplug adplug 0 ~ 2.4 -

II. Public POCs for CVE-2026-110875

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III. Intelligence Information for CVE-2026-110875

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Patches & Fixes for CVE-2026-110875 (2)

Vendor Advisories for CVE-2026-110875 (1)

Proof of Concept for CVE-2026-110875 (1)

Same Patch Batch · adplug · 2026-10-15 · 3 CVEs total

CVE-2026-110877 5.5 MEDIUM AdPlug through 2.4 Heap Out-of-Bounds Read via CdmoLoader::load
CVE-2026-110876 5.5 MEDIUM AdPlug through 2.4 Out-of-Bounds Read via CxsmPlayer::play_note in XSM Files

IV. Related Vulnerabilities

Same product: adplug
Same vendor: adplug
Same weakness: CWE-787

V. Comments for CVE-2026-110875

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