Vulnerabilities CVE-2025-15556

CVE-2025-15556

Medium

Open

KEV

TLP:CLEAR

Notepad++ Download of Code Without Integrity Check Vulnerability

NVD CVE.org

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Description

Notepad++ — Notepad++ — 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.

Details

EPSS Score ⓘ: 1.27%

67.1th percentile
Confidence: 100%
CISA KEV
Date Added: Feb 12, 2026
Patch Due: Mar 5, 2026
Required 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.

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