Vulnerability Description
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 Score
HIGH
Related Weaknesses (CWE)
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-vulnerabili
- https://www.vicarius.io/vsociety/posts/cve-2025-56383-mitigate-notepad-vulnerabi
FAQ
What is CVE-2025-56383?
CVE-2025-56383 is a vulnerability with a CVSS score of 8.4 (HIGH). 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 ...
How severe is CVE-2025-56383?
CVE-2025-56383 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-56383?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.