CVE detail
CVE-2025-15556: Notepad++ Download of Code Without Integrity Check Vulnerability
Source: CISA Known Exploited Vulnerabilities catalog · back to feed
Vendor / product
Notepad++ · Notepad++
- Date added (KEV)
- Feb 12, 2026
- CISA due date
- Mar 05, 2026
- Ransomware campaign use
- Unknown
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.
Scorifya interpretation
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Plain English
Technical detail
From CISA
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.
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
See what attackers can see on your domain
This vulnerability is on CISA's Known Exploited Vulnerabilities list, so it is being exploited in the wild right now. Scorifya can't test for Notepad++ directly, but in about 30 seconds it shows what your own domain exposes publicly across TLS, security headers, DNS, and cookies: the surface attackers probe first.
SOC 2 compliance
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See Scorifya Controls →References
- https://notepad-plus-plus.org/news/hijacked-incident-info-update/PatchVendor Advisory
- https://notepad-plus-plus.org//news//clarification-security-incident/Vendor Advisory
- https://github.com/notepad-plus-plus/notepad-plus-plus/commit/bcf2aa68ef414338d717e20e059459570ed6c5abPatch
- https://github.com/notepad-plus-plus/wingup/commit/ce0037549995ed0396cc363544d14b3425614fdbPatch
- https://community.notepad-plus-plus.org/topic/27298/notepad-v8-8-9-vulnerability-fix