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Notepad++ Download of Code Without Integrity Check Vulnerability

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  • NewsExploited · CISA KEVNotepad++ · Notepad++

    Notepad++ Download of Code Without Integrity Check Vulnerability

    CVE-2025-15556

    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.

    CISA's required action · due for U.S. federal civilian agencies
    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Cited by CISA: notepad-plus-plus.org · community.notepad-plus-plus.org · nvd.nist.gov

    Added to KEV · Source checked · CISA KEV entry

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