Authentication bypass in the Microsoft Entra ID (Azure AD) authentication mode in Devolutions Server 2025.3.15.0 and earlier allows an unauthenticated user to authenticate as an arbitrary Entra ID user via a forged JSON Web Token (JWT).
Conclusion & alert: CVE-2026-3224 is rated Moderate Risk (45.7/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.06%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-04 | 0.04% | 0.06% | +0.02% |
| 2 | 2026-03-28 | 0.05% | 0.04% | -0.01% |
| 3 | 2026-03-09 | — | 0.05% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| devolutions | devolutions_server | < 2025.3.16.0 | cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://devolutions.net/security/advisories/DEVO-2026-0005/ | Vendor Advisory |