Coverage › CVE-2025-15556
CVE-2025-15556 Unmapped
Notepad++ Download of Code Without Integrity Check Vulnerability
- Vendor / product
- Notepad++ — Notepad++
- Description (CISA)
- 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.
- Added to KEV
- 2026-02-12 — after the latest CTID mapping snapshot (2025-07-28)
- Due date
- 2026-03-05
- 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.
- Known ransomware use
- Unknown
- CWE
- CWE-494
- CISA notes
- https://notepad-plus-plus.org/news/clarification-security-incident/
https://community.notepad-plus-plus.org/topic/27298/notepad-v8-8-9-vulnerability-fix
https://nvd.nist.gov/vuln/detail/CVE-2025-15556 - Elsewhere
- cve.org · NVD · CISA KEV · JSON
ATT&CK techniques
No public source states how this vulnerability is exploited in ATT&CK terms.
The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2025-15556. This entry was added to KEV on 2026-02-12, after that snapshot; of the 283 entries added since, 0 have a mapping. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-494) — here is why — and does not guess.
This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.