CVE-2025-40600: Critical severity SonicWall SonicOS vulnerability

Published Jul 29, 2025
·
Updated

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

Affected Software

24 affected components
SonicWall SonicOS
All of the following
SonicWall SonicOS>=7.1.1-7040<7.3.0-7012
Any of the following
SonicWall Nsa 2700
SonicWall Nsa 3700
SonicWall Nsa 4700
SonicWall Nsa 5700
SonicWall Nsa 6700
SonicWall Nssp 10700
SonicWall Nssp 11700
SonicWall Nssp 13700
SonicWall Nssp 15700
SonicWall Nsv270
SonicWall Nsv470
SonicWall Nsv870
SonicWall Tz270
SonicWall Tz270w
SonicWall Tz370
SonicWall Tz370w
SonicWall Tz470
SonicWall Tz470w
SonicWall Tz570
SonicWall Tz570p
SonicWall Tz570w
SonicWall Tz670

Event History

Jul 29, 2025
CVE Published
via MITRE·09:11 PM
Data Sourced
via MITRE·09:11 PM
DescriptionWeakness
Data Sourced
via NVD·10:15 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-40600?

CVE-2025-40600 is considered a high-severity vulnerability due to its potential to allow remote unauthenticated attackers to disrupt services.

2

How do I fix CVE-2025-40600?

To fix CVE-2025-40600, ensure that your SonicWall SonicOS is updated to the latest patched version as recommended by the vendor.

3

Who is affected by CVE-2025-40600?

CVE-2025-40600 affects all versions of SonicWall SonicOS that use the SSL VPN interface.

4

What type of attack does CVE-2025-40600 enable?

CVE-2025-40600 enables a remote unauthenticated attacker to exploit an externally-controlled format string vulnerability, leading to service disruption.

5

Can CVE-2025-40600 be exploited without authentication?

Yes, CVE-2025-40600 can be exploited by remote attackers without any authentication.

Contact

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