# CVE-2025-15556: A Notepad++ bug is being used in attacks

Status: Being used now (CISA KEV, added 2026-02-12)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Notepad++ Notepad++ (CVE-2025-15556) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2025-15556. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official 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.

## Sources
- https://notepad-plus-plus.org/news/clarification-security-incident/
- https://community.notepad-plus-plus.org/topic/27298/notepad-v8-8-9-vulnerability-fix
- https://nvd.nist.gov/vuln/detail/CVE-2025-15556
- https://nvd.nist.gov/vuln/detail/CVE-2025-15556

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.