CVE-2025-15556
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.
Risk Information
Base Score
7.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
5.585
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerabilities CVE-2025-15556 are affected in Notepad++ 8.8.8 | Windows |
| Vulnerabilities CVE-2025-15556 are affected in Notepad++ (x64) 8.8.8 | Windows |
| Vulnerabilities CVE-2025-15556 are affected in Notepad++ (User Based) 8.8.8 | Windows |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-355345 | Notepad++ (8.9.1) |
| PATCH-355346 | Notepad++ (x64) (8.9.1) |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234