A AegiFlow
UNKNOWNKNOWN EXPLOITED

CVE-2025-15556

Notepad++ Download of Code Without Integrity Check Vulnerability

Published
2026-02-12
Modified
2026-07-31
Sources
cisa-kev

Summary

Notepad++ when using the WinGUp updater, contains a download of code without integrity check vulnerability that could allow an attacker to intercept or redirect update traffic to download and execute an attacker-controlled installer. This could lead to arbitrary code execution with the privileges of the user.

References

Includes data from the CISA Known Exploited Vulnerabilities catalog.

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