CVE-2025-56383
As of 2026-02-26, CVE-2025-56383 is a CVSS 8.4 (HIGH-severity) vulnerability. Public exploit code available. EPSS exploitation probability 0.3%. Threadlinqs Intelligence tracks 1 threat exploiting it.
Last updated: 2026-02-26
Notepad++ v8.8.3 has a DLL hijacking vulnerability, which can replace the original DLL file to execute malicious code. NOTE: this is disputed by multiple parties because the behavior only occurs when a user installs the product into a directory tree that allows write access by arbitrary unprivileged users.
CVSS v3 vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
CWE-427
Exploitation status
public exploit code available
- zer0t0/CVE-2025-56383-Proof-of-Concept (github)
- NewComrade12211/CVE-2025-56383 (github)
- trickest/cve (trickest)
Threats tracking this CVE
References
- https://github.com/notepad-plus-plus/notepad-plus-plus
- https://github.com/zer0t0/CVE-2025-56383-Proof-of-Concept
- https://github.com/zer0t0/CVE-2025-56383-Proof-of-Concept/issues/1
- https://www.vicarius.io/vsociety/posts/cve-2025-56383-detect-notepad-vulnerability
- https://www.vicarius.io/vsociety/posts/cve-2025-56383-mitigate-notepad-vulnerability
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Enriched from CVE.org, NVD (this product uses the NVD API but is not endorsed or certified by the NVD), FIRST EPSS, CISA KEV, and GitHub Security Advisories.