Proxying to Compromise: SonicWall Secure Mobile Access 0-day Exploitation

In early July 2026, Volexity was engaged to perform an incident response investigation where it discovered a threat actor had successfully compromised SonicWall Secure Mobile Access (SMA) VPN appliances through a chain of multiple zero-day exploits in the devices. The initial compromise was discovered after suspect authentication and lateral movement attempts were observed from the SonicWall SMA appliances. Following public disclosure by SonicWall on July 14, 2026, Volexity is now able to share details on the exploits used…