Input validation error in SonicWall On-premise Email Security (ES) - CVE-2026-3469
Published: April 1, 2026
Vulnerability identifier: #VU124783
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-3469
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote privileged user can pass specially crafted input to the system and perform a denial of service (DoS) attack.
Affected software
SonicWall On-premise Email Security (ES)
How to mitigate CVE-2026-3469
Install updates from vendor's website.
SonicWall On-premise Email Security (ES) - update to 10.0.35.8405