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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.60% probability · 48th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- devolutions/devolutions server
- Source
- security@devolutions.net
EPSS 0.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://devolutions.net/security/advisories/DEVO-2025-0016Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.