CVE-2025-56383

Published: Sep 26, 2025Modified: Jun 17, 2026Deferred

8.4

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.5 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Related CWEs

CWE-427

Uncontrolled Search Path Element

The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.

References (5)

https://github.com/notepad-plus-plus/notepad-plus-plus

Source: cve@mitre.org

https://github.com/zer0t0/CVE-2025-56383-Proof-of-Concept

Source: cve@mitre.org

https://github.com/zer0t0/CVE-2025-56383-Proof-of-Concept/issues/1

Source: cve@mitre.org

https://www.vicarius.io/vsociety/posts/cve-2025-56383-detect-notepad-vulnerability

Source: cve@mitre.org

https://www.vicarius.io/vsociety/posts/cve-2025-56383-mitigate-notepad-vulnerability

Source: cve@mitre.org

Timeline

No history available yet.