Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Conclusion & alert: CVE-2022-21306 is rated High Risk (77.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 36.95%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.08% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2026-03-17 | 32.87% | 36.95% | +4.08% |
| 2 | 2026-02-24 | 36.54% | 32.87% | -3.66% |
| 3 | 2025-11-21 | — | 36.54% | — |
Full EPSS history (29 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 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| oracle | weblogic_server | 12.1.3.0.0 | cpe:2.3:a:oracle:weblogic_server:12.1.3.0.0:*:*:*:*:*:*:* |
| oracle | weblogic_server | 12.2.1.3.0 | cpe:2.3:a:oracle:weblogic_server:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | weblogic_server | 12.2.1.4.0 | cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:* |
| oracle | weblogic_server | 14.1.1.0.0 | cpe:2.3:a:oracle:weblogic_server:14.1.1.0.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2022.html | Vendor Advisory |