Vulnerability in the Oracle Enterprise Session Border Controller product of Oracle Communications (component: Log). Supported versions that are affected are 8.4 and 9.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Enterprise Session Border Controller. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Enterprise Session Border Controller. CVSS 3.1 Base Score 4.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).
Conclusion & alert: CVE-2022-21383 is rated Low Risk (35.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.80%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 0.43% | 0.80% | +0.37% |
| 2 | 2025-11-21 | 0.31% | 0.43% | +0.12% |
| 3 | 2025-11-18 | — | 0.31% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| oracle | enterprise_session_border_controller | 8.4 | cpe:2.3:a:oracle:enterprise_session_border_controller:8.4:*:*:*:*:*:*:* |
| oracle | enterprise_session_border_controller | 9.0 | cpe:2.3:a:oracle:enterprise_session_border_controller:9.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujan2022.html | Vendor Advisory |