CVE-2020-25757

high

Description

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.

References

https://www.dlink.com/en/security-bulletin

https://www.digitaldefense.com/news/zero-day-vuln-d-link-vpn-routers/

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10195

Details

Source: Mitre, NVD

Published: 2020-12-15

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.0072