CVE-2020-25757: D-Link Dsr-1000 Firmware

High severity, CVSS 8.8. EPSS: 2.1% chance of exploitation in the next 30 days.

A lack of input validation and access controls in Lua CGIs on D-Link DSR VPN routers may result in arbitrary input being passed to system command APIs, resulting in arbitrary command execution with root privileges. This affects DSR-150, DSR-250, DSR-500, and DSR-1000AC with firmware 3.14 and 3.17.

Affected products

• D-Link Dsr-1000 Firmware: up to and including 3.17
• D-Link Dsr-1000ac Firmware: up to and including 3.17
• D-Link Dsr-1000n Firmware: up to and including 3.17
• D-Link Dsr-150 Firmware: up to and including 3.17
• D-Link Dsr-150n Firmware: up to and including 3.17
• D-Link Dsr-250 Firmware: up to and including 3.17
• D-Link Dsr-250n Firmware: up to and including 3.17
• D-Link Dsr-500 Firmware: up to and including 3.17
• D-Link Dsr-500ac Firmware: up to and including 3.17
• D-Link Dsr-500n Firmware: any version

Published 2020-12-15. Last modified 2026-06-17.