CVE-2025-15556βNotepad++ Download of Code Without Integrity Check Vulnerability
PUBLISHEDvulnerability record
2026-02-12 Β· last modified February 12, 2026
Metadata
Vulnerability Name
Notepad++ Download of Code Without Integrity Check Vulnerability
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.
Known To Be Used in Ransomware Campaigns?
Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.