What’s Vulnerable › Vulnerabilities

CVE-2025-56383

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-26 · updated 2026-06-17
• Weakness: CWE-427

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.

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

Get alerted when CVE-2025-56383 or the next vulnerability affects your stack