🛡️ CVE-2025-15556
🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-494 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Notepad++ versions prior to 8.8.9, when using the WinGUp updater, contain an update integrity verification vulnerability where downloaded update metadata and installers are not cryptographically verified. An attacker able to intercept or redirect update traffic can cause the updater to download and execute an attacker-controlled installer, resulting in arbitrary code execution with the privileges of the user.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-494
Public Exploit ✅ No
Source NVD
Published 2026-02-03
Updated 2026-06-02
Modified 2026-02-13

Affected Packages

Software From version Fixed in
notepad\+\+ 8.8.9

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