Vulnerability Report

CVE-2025-12485

Title: Pre-MFA Cookie Replay in Devolutions Server

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2025-12485.

CWE Category CWE-269

Published Date Nov 06, 2025

Modified Date Nov 10, 2025

Exploit Status Not Found

Score 8.8 CVSS v3.1

Exploit Probability (EPSS)

0.08%

Vulnerability Summary

CVE-2025-12485: 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

Impacted Vendors

devolutions 1

Reference Links

https://devolutions.net/security/advisories/DEVO-2025-0016

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity HIGH

8.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-12485 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

November 10, 2025 MODIFIED

Vulnerability data or affected products updated.

November 10, 2025 MODIFIED

Vulnerability data updated via NVD.

November 06, 2025 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.