CVE-2025-15556
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
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EPSS — probability of exploitation (30 days)
1.7%
76.3th percentile
CISA KEV
Listed
Added 2026-02-12 · patch by 2026-03-05
Weakness / dates
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Published — · modified —
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.