CVE-2020-26133: Dual Dhcp DNS Server Project Dual Dhcp DNS Server

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

An issue was discovered in Dual DHCP DNS Server 7.40. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the DualServer.exe binary.

Affected products

• Dual Dhcp DNS Server Project Dual Dhcp DNS Server: version 7.40 only

Published 2020-10-28. Last modified 2026-06-17.