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SonicWall SMA1000 vulnerabilities (CVE-2026-83548, CVE-2026-83549) in active exploitation

Author - Sophos Logo

Written by Sophos Counter Threat Unit Research Team

SonicWall 83548 83549 - feature
Threat ResearchadvisoryvulnerabilitySonicWall

On September 1, 2026, SonicWall disclosed two vulnerabilities in SonicWall SMA1000 appliances. Models 6210, 7210, and 8200v are affected.

CVE-2026-83548 is a critical (CVSS score of 10.0) unauthenticated server-side request forgery (SSRF) flaw in the SMA1000 Appliance Work Place interface. According to the SonicWall advisory, an attacker could exploit this issue to “gain unauthorized access to sensitive functionality and perform unauthorized operations.” 

CVE-2026-83549 is a high-severity (CVSS score of 7.8) OS command injection vulnerability in the Appliance Management Console (AMC) that arises from improper neutralization of special elements. In specific conditions, it could “enable a remote attacker authenticated as an administrator to execute arbitrary OS commands, resulting in remote code execution.” 

SonicWall confirmed exploitation of these vulnerabilities in the wild.

Recommended actions

Counter Threat Unit™ (CTU) researchers recommend that organizations identify vulnerable SonicWall appliances in their environments and upgrade as appropriate as soon as possible. 

Sophos countermeasures

SophosLabs continues to monitor the threat landscape for activity related to these vulnerabilities and will deliver detections and protections as available.

About the Author(s)

Author - Sophos Logo

Sophos Counter Threat Unit Research Team

Sophos Counter Threat Unit™ (CTU) researchers are recognized authorities in the cybersecurity field, regularly contributing expert analysis to global media, publishing technical analyses for the security community, and presenting about emerging threats at leading security conferences. Backed by Sophos’ advanced security technologies and a broad network of intelligence contacts and partners, the CTU™ plays a critical role in identifying and tracking threat actors and analyzing anomalous activity, uncovering new attack techniques, threats, and major shifts in the threat landscape.