CVE-2020-5131: SonicWall Netextender

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

SonicWall NetExtender Windows client vulnerable to arbitrary file write vulnerability, this allows attacker to overwrite a DLL and execute code with the same privilege in the host operating system. This vulnerability impact SonicWall NetExtender Windows client version 9.0.815 and earlier.

Affected products

• SonicWall Netextender: up to and including 9.0.815

Published 2020-07-17. Last modified 2026-06-17.