CVE-2025-15556 — Notepad++ Download of Code Without Integrity Check Vulnerability
Severity: Critical · Kind: Vulnerability
What it is
AI offline placeholder summary for: Title: CVE-2025-15556 — Notepad++ Download of Code Without Integrity Check Vulne.
Who this affects
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What to do
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From the source
Notepad++ Notepad++. 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. 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.
Vulnerability facts
- CVE
- CVE-2025-15556
- On CISA KEV since
- 2026-02-12
- Ransomware use
- Unknown
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