Notepad++ · Notepad++
CVE-2025-15556
Notepad++ < 8.8.9 WinGUp Updater Lacks Update Integrity Verification
Was es ist
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.
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.
Was zu tun ist
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Frist für US-Bundesbehörden: 5. März 2026
- Zur CISA-Liste hinzugefügt
- 12. Februar 2026
- Veröffentlicht
- 3. Februar 2026
- Schweregrad
- Hoch 7,7 CVSS 4.0
- Wahrscheinlichkeit von Angriffen in den nächsten 30 Tagen (EPSS)
- 1,8% unter den obersten 22,0% aller bekannten Schwachstellen
- Schwachstellentyp
- CWE-494
- Mehr Details
- NVD · CVE.org · CISA
Alle Quellen (5)
- https://community.notepad-plus-plus.org/topic/27298/notepad-v8-8-9-vulnerability-fix
- https://notepad-plus-plus.org/news/hijacked-incident-info-update/
- https://github.com/notepad-plus-plus/notepad-plus-plus/commit/bcf2aa68ef414338d717e20e059459570ed6c5ab
- https://github.com/notepad-plus-plus/wingup/commit/ce0037549995ed0396cc363544d14b3425614fdb
- https://www.vulncheck.com/advisories/notepad-plus-plus-wingup-updater-lacks-update-integrity-verification
Quellen: Known Exploited Vulnerabilities (CISA, gemeinfrei), CVE records (cve.org) und EPSS (FIRST). Die Angriffswahrscheinlichkeit ist die EPSS-Schätzung, dass jemand in den nächsten 30 Tagen versucht, die Schwachstelle auszunutzen.