In April of 2025, Rapid7 discovered and disclosed three new vulnerabilities affecting SonicWall Secure Mobile Access (“SMA”) 100 series appliances (SMA 200, 210, 400, 410, 500v). These vulnerabilities are tracked as CVE-2025-32819, CVE-2025-32820, and CVE-2025-32821. An attacker with access to an SMA SSLVPN user account can chain these vulnerabilities to make a sensitive system directory writable, elevate their privileges to SMA administrator, and write an executable file to a system directory. This chain results in root-level remote code execution. These vulnerabilities have been fixed in version 10.2.1.15-81sv.

Rapid7 would like to thank the SonicWall security team for quickly responding to our disclosure and going above and beyond over a holiday weekend to get a patch out.