CVE-2025-15556CISA KEV: Actively Exploited

Notepad++ Download of Code Without Integrity Check Vulnerability

Published Feb 12, 2026·Updated Feb 12, 2026

Description

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.

Public Exploits & PoCs1 found

References

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