Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: OPSS). Supported versions that are affected are 11.1.1.9.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Platform Security for Java. Successful attacks of this vulnerability can result in takeover of Oracle Platform Security for Java. 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-2021-2302 is rated High Risk (66.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.67%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. 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 | 2026-06-15 | 52.53% | 5.67% | -46.86% |
| 2 | 2025-03-30 | 73.26% | 52.53% | -20.74% |
| 3 | 2025-03-29 | — | 73.26% | — |
Full EPSS history (21 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 | platform_security_for_java | 11.1.1.9.0 | cpe:2.3:a:oracle:platform_security_for_java:11.1.1.9.0:*:*:*:*:*:*:* |
| oracle | platform_security_for_java | 12.2.1.3.0 | cpe:2.3:a:oracle:platform_security_for_java:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | platform_security_for_java | 12.2.1.4.0 | cpe:2.3:a:oracle:platform_security_for_java:12.2.1.4.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2021.html | Patch Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-460/ | Third Party Advisory VDB Entry |