AdPlug up to 2.4 XSM File src/xsm.cpp out-of-bounds

Summaryinfo

A vulnerability categorized as critical has been discovered in AdPlug up to 2.4. Affected by this issue is some unknown functionality of the file src/xsm.cpp of the component XSM File Handler. Such manipulation leads to out-of-bounds. This vulnerability is documented as CVE-2026-110876. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in AdPlug up to 2.4. Affected by this issue is an unknown functionality of the file src/xsm.cpp of the component XSM File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at hackmd.io. This vulnerability is handled as CVE-2026-110876 since 10/15/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/15/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• AdPlug

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4

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CPE 2.2info

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