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The vulnerability of the WinGUp software, a tool for automatic updating of the Notepad++ text editor, stems from insufficient verification of the authenticity of update files. This allows attackers to execute arbitrary code.
🗓️ 16 Dec 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 2 Views
| Reporter | Title | Published | Views | Family All 18 |
|---|---|---|---|---|
 | CVE-2025-15556 | 3 Feb 202600:50 | – | attackerkb |
 | CVE-2025-15556 | 4 Feb 202607:01 | – | circl |
 | Notepad++ Download of Code Without Integrity Check Vulnerability | 12 Feb 202600:00 | – | cisa_kev |
 | CISA Adds Four Known Exploited Vulnerabilities to Catalog | 12 Feb 202612:00 | – | cisa |
 | Notepad++ 安全漏洞 | 3 Feb 202600:00 | – | cnnvd |
 | CVE-2025-15556 | 3 Feb 202600:50 | – | cve |
 | CVE-2025-15556 Notepad++ < 8.8.9 WinGUp Updater Lacks Update Integrity Verification | 3 Feb 202600:50 | – | cvelist |
 | EUVD-2025-206661 | 3 Feb 202600:50 | – | euvd |
 | Notepad++ < 8.8.9 Update Integrity Verification Vulnerability | 4 Feb 202600:00 | – | nessus |
 | CVE-2025-15556 | 3 Feb 202601:15 | – | nvd |
10
| Source | Link |
|---|---|
| notepad-plus-plus | www.notepad-plus-plus.org/news/v889-released/ |
| web | www.web.nvd.nist.gov/view/vuln/detail |
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03 Feb 2026 00:00Current
6.5Medium risk
Vulners AI Score6.5
CVSS 37.5
CVSS 27.6
EPSS0.01268