Path traversal in SonicWall On-premise Email Security (ES) - CVE-2025-40605
Published: November 20, 2025
Vulnerability identifier: #VU118632
CSH Severity: Low
CVSS v4: 6.9 [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]
CVE-ID: CVE-2025-40605
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
SonicWall On-premise Email Security (ES)
How to mitigate CVE-2025-40605
Install updates from vendor's website.
SonicWall On-premise Email Security (ES) - addressed in versions 10.0.34.8215, 10.0.34.8223