CVE-2025-15556
HIGH KEVNotepad-plus-plus Notepad++ < 8.8.9 - Download Without Integrity Check
Title source: ruleDescription
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.
Exploits (3)
github
WORKING POC
10 stars
by XiaomingX · pythonpoc
https://github.com/XiaomingX/data-cve-poc-py-v1/tree/main/2025/CVE-2025-15556
nomisec
WORKING POC
1 stars
by George0Papasotiriou · poc
https://github.com/George0Papasotiriou/CVE-2025-15556-Notepad-WinGUp-Updater-RCE
Scores
CVSS v3
7.5
EPSS
0.0609
EPSS Percentile
90.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CISA KEV
2026-02-12
VulnCheck KEV
2026-02-02
ENISA EUVD
EUVD-2025-206661
CWE
CWE-494
Status
published
Products (1)
notepad-plus-plus/notepad\+\+
< 8.8.9
Published
Feb 03, 2026
KEV Added
Feb 12, 2026
Tracked Since
Feb 18, 2026