Vulnerability in the OSS Support Tools product of Oracle Support Tools (component: Oracle Explorer). The supported version that is affected is 18.3. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where OSS Support Tools executes to compromise OSS Support Tools. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in OSS Support Tools, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all OSS Support Tools accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N).
Conclusion & alert: CVE-2022-21405 is rated Low Risk (28.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.27%). 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 | 0.07% | 0.27% | +0.20% |
| 2 | 2025-03-17 | 0.04% | 0.07% | +0.03% |
| 3 | 2023-03-07 | — | 0.04% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.1 | 4.0 | [email protected] |
| 1.2 | 2.0 | LOW |
|
1.9 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| oracle | oss_support_tools | 18.3 | cpe:2.3:a:oracle:oss_support_tools:18.3:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpuapr2022.html | Vendor Advisory |