SonicWall Security Update – 27 April 2025

SonicWall has released a security update to address a vulnerability across SonicOS SSLVPN Virtual Office interface.

The addressed vulnerability could allow the unauthenticated remote attacker to cause a denial of service attack and crash the affected firewall system.

SonicOS SSLVPN NULL Pointer Dereference Denial-of-Service Vulnerability (CVE-2025-32818):

  • CVSS: 7.5
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Consequences: Denial of Service

The affected products:

  • Gen7 NSv – NSv 270, NSv 470, NSv 870.
  • Gen7 Firewalls – TZ270, TZ270W, TZ370, TZ370W, TZ470, TZ470W, TZ570, TZ570W.
  • TZ570P, TZ670, NSa 2700, NSa 3700,NSa 4700, NSa 5700, NSa 6700, NSsp 10700, NSsp 11700, NSsp 13700, NSsp 15700.
  • TZ80.
Vulnerabilities

CVE-2025-32818

Mitigations

The enterprise should deploy this patch as soon as the testing phase is completed.

SonicWall Security Update

References