CVE-2025-15556

Severity not reported CISA KEV

Data quality: kev only. This record comes from the CISA KEV catalog only; NVD details have not been synced yet.

Notepad++ Download of Code Without Integrity Check Vulnerability

Vendor / product: 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.

CVSS

—

Not reported by the source

Timeline (UTC)

Published: not reported

Modified: not reported

NVD status: not reported

Last synced 1 day ago

Verified against the source API 2026-10-27 06:50 UTC

Exploitation

Listed in CISA KEV

Added 2026-02-12 · due 2026-03-05

Known ransomware use: Unknown

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-494

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

No references reported.

Data sources

CISA KEV — fetched 2026-10-27 06:50 UTC · record ↗

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