Unspecified vulnerability in the RDBMS component in Oracle Database Server 12.1.0.1 and 12.1.0.2 allows remote authenticated users to affect confidentiality and integrity via unknown vectors.
Conclusion & alert: CVE-2015-4857 is rated Moderate Risk (47.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.44%). Core evidence: EPSS rose +1.21% over the last day, indicating growing attacker interest. 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 | 2026-06-15 | 0.23% | 1.44% | +1.21% |
| 2 | 2025-03-30 | 0.26% | 0.23% | -0.02% |
| 3 | 2025-03-29 | — | 0.26% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 2.0 | MEDIUM |
|
8.0 | 4.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| oracle | database_server | 12.1.0.1 | cpe:2.3:a:oracle:database_server:12.1.0.1:*:*:*:*:*:*:* |
| oracle | database_server | 12.1.0.2 | cpe:2.3:a:oracle:database_server:12.1.0.2:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html | Patch Vendor Advisory |
| http://www.securitytracker.com/id/1033883 |