CVE-2025-6523: Devolutions Server

High severity, CVSS 7.7. EPSS: 0.4% chance of exploitation in the next 30 days.

Use of weak credentials in emergency authentication component in Devolutions Server allows an unauthenticated attacker to bypass authentication via brute forcing the short emergency codes generated by the server within a feasible timeframe. This issue affects the following versions : * Devolutions Server 2025.2.2.0 through 2025.2.3.0 * Devolutions Server 2025.1.11.0 and earlier

Affected products

• Devolutions Devolutions Server: up to and including 2025.1.11.0; from 2025.2.2.0, before 2025.2.4.0 (fixed in 2025.2.4.0)

Published 2025-07-22. Last modified 2026-06-17.