CVE-2023-40164

Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to global buffer read overflow in `nsCodingStateMachine::NextStater`. The exploitability of this issue is not clear. Potentially, it may be used to leak internal memory allocation information. As of time of publication, no known patches are available in existing versions of Notepad++.

• CWE-120

• https://securitylab.github.com/advisories/GHSL-2023-092_Notepad__/Exploit, Third Party Advisory
• https://securitylab.github.com/advisories/GHSL-2023-092_Notepad__/Exploit, Third Party Advisory

Published

Aug 25, 2023

Last Modified

Jun 17, 2026

Status

Modified

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