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CVE

CVE-2025-6523

Use of weak credentials in emergency authentication component in Devolutions Server allows an unauthenticated attacker t

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.

HIGH · CVSS 7.7 EPSS 0.00182
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1391Use of Weak Credentials
▤

Affected Products & Versions

2
devolutions server<= 2025.1.11.0
devolutions server>= 2025.2.2.0 and < 2025.2.4.0
▣

Scoring & Timeline

7.7
HIGH · CVSS v3.1 · security@devolutions.net
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Jul 2025 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://devolutions.net/security/advisories/DEVO-2025-0012/Vendor Advisory
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