Path traversal in SonicWall On-premise Email Security (ES) - CVE-2025-40605

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Main Vulnerability Database Vulnerabilities #VU118632

Path traversal in SonicWall On-premise Email Security (ES) - CVE-2025-40605

Published: November 20, 2025


Vulnerability identifier: #VU118632
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-40605
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: SonicWall
Affected software:
SonicWall On-premise Email Security (ES)

Detailed vulnerability description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.


How to mitigate CVE-2025-40605

Install updates from vendor's website.

Sources