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CRITICAL · 9.8

CVE-2025-40600

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption.

Vulnerability Description

Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
SonicwallSonicos>= 7.1.1-7040, < 7.3.0-7012
SonicwallNsa 2700-
SonicwallNsa 3700-
SonicwallNsa 4700-
SonicwallNsa 5700-
SonicwallNsa 6700-
SonicwallNssp 10700-
SonicwallNssp 11700-
SonicwallNssp 13700-
SonicwallNssp 15700-
SonicwallNsv270-
SonicwallNsv470-
SonicwallNsv870-
SonicwallTz270-
SonicwallTz270W-
SonicwallTz370-
SonicwallTz370W-
SonicwallTz470-
SonicwallTz470W-
SonicwallTz570-

Related Weaknesses (CWE)

CWE-134

References

FAQ

What is CVE-2025-40600?

CVE-2025-40600 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption.

How severe is CVE-2025-40600?

CVE-2025-40600 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-40600?

Check the references section above for vendor advisories and patch information. Affected products include: Sonicwall Sonicos, Sonicwall Nsa 2700, Sonicwall Nsa 3700, Sonicwall Nsa 4700, Sonicwall Nsa 5700.