23 Oct 2026 15:48:27 UTC
Notepad++: Authenticode verification bypass allows modified updater execution
cve-program · CVE-2026-85995 · Published
CVE-2026-85995
Notepad++: Authenticode verification bypass allows modified updater execution
CVSS 3.1 7.3 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-85995
PublishedNotepad++ is a free and open-source source code editor. From 8.9.7 until 8.9.8, the Notepad++ updater and signature verification path can accept a modified GUP.exe file whose embedded certificate metadata remains present even though its Authenticode digest is invalid. An attacker who can replace or plant the updater-related file can cause Notepad++ to launch attacker-modified code when a user triggers the updater path, but the issue does not provide remote code execution by itself. This issue is fixed in version 8.9.8.
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