CVE-2025-6523

9.5 criticalEPSS 0.5%

Critical (9.5) in devolutions devolutions server. EPSS 0.5% 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

Severity

CVSS 4.0

9.5 critical

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:H

CVSS 3.1

7.7 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)
CWE: CWE-1391
Published: 2025-07-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

devolutions:devolutions_server

References

https://devolutions.net/security/advisories/DEVO-2025-0012/

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