CVE-2025-52543: Copeland e3 Supervisory Controller Firmware

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

E3 Site Supervisor Control (firmware version < 2.31F01) application services (MGW and RCI) uses client side hashing for authentication. An attacker can authenticate by obtaining only the password hash.

Affected products

• Copeland e3 Supervisory Controller Firmware: before 2.31f01 (fixed in 2.31f01)

Published 2025-09-02. Last modified 2026-06-17.