Security Advisory: Firmware Update Required — Gen 6, Gen 7, and Gen 8 Firewalls

SonicWall has identified three vulnerabilities (CVEs) affecting Gen 6, Gen 7, and Gen 8 firewall platforms. These vulnerabilities require immediate firmware updates to maintain security posture. One CVE is rated High severity and two are rated medium severity.

Applies To

• Gen 8 firewalls — patch available in firmware 8.2.0-8009
• Gen 7 firewalls — patch available in firmware 7.3.2-7010
• Gen 6 firewalls — patched firmware posted to MySonicWall on April 29, 2026

Resolution

Apply the appropriate firmware update for your platform as soon as possible.

Auto-Update

SonicWall will automatically publish the firmware to the update service, so customers with Auto Update configured will be automatically remediated.

To understand how auto update works please review the following KB : Auto update on SonicWall

Manual Update

If Auto Update is disabled, follow these steps:

• Log in to MySonicWall .
• Navigate to the firmware download section for your platform.
• Download and apply the appropriate patched firmware version listed above.

Workaround

If immediate patching is not possible, apply the following temporary mitigations until the firmware update can be applied:

• Disable HTTP/HTTPS-based firewall management on all interfaces.
• Disable SSL-VPN on all interfaces.
• Restrict management access to SSH only.

Important: These steps are a temporary measure only. Applying the patched firmware as soon as possible is strongly recommended.

References

• PSIRT Advisory — SNWLID-2026-0004
• Download Firmware — MySonicWall
• Deprecation of CGI-Based Guest Login Page Customization  
• How to Disable SonicWall Management Access
• How to Disable SSL-VPN
• Contact SonicWall Support