CVE-2025-15556
Notepad++ Download of Code Without Integrity Check Vulnerability
IN CISA KEV
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.
- Vendor
- Notepad++
- Product
- Notepad++
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-494
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2026-02-12
- Due date
- 2026-03-05
- Ransomware use
- Unknown
- 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.
EPSS
1.77% chance of exploitation in the next 30 days (percentile 77th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.