CVE-2025-12485: High severity Devolutions Server vulnerability

Published Nov 6, 2025
·
Updated

Improper privilege management during pre-MFA cookie handling in Devolutions Server allows a low-privileged authenticated user to impersonate another account by replaying the pre-MFA cookie.This does not bypass the target account MFA verification step.

This issue affects the following versions :

Devolutions Server 2025.3.2.0 through 2025.3.5.0

Devolutions Server 2025.2.15.0 and earlier

Affected Software

3 affected components
Devolutions Server>=2025.3.2.0<=2025.3.5.0, <2025.2.15.0
Devolutions Devolutions Server<2025.2.17.0
Devolutions Devolutions Server>=2025.3.2.0<2025.3.6.0

Event History

Nov 6, 2025
CVE Published
via MITRE·04:37 PM
Data Sourced
via MITRE·04:37 PM
DescriptionWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-12485?

CVE-2025-12485 is rated as a high-severity vulnerability due to its potential for account impersonation.

2

How do I fix CVE-2025-12485?

To remediate CVE-2025-12485, upgrade Devolutions Server to version 2025.3.5.1 or later, which addresses the privilege management issue.

3

What are the potential impacts of CVE-2025-12485?

CVE-2025-12485 could allow a low-privileged user to access another user's account by replaying the pre-MFA cookie, compromising account integrity.

4

Which versions of Devolutions Server are affected by CVE-2025-12485?

CVE-2025-12485 affects Devolutions Server versions up to and including 2025.3.5.0.

5

Does CVE-2025-12485 bypass MFA validation?

No, while CVE-2025-12485 allows impersonation, it does not bypass the target account's MFA verification steps.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203