Dell Unity, version(s) 5.4 and prior, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to arbitrary command execution as root. Exploitation may lead to a system take over by an attacker. This vulnerability is considered critical as it can be leveraged to completely compromise the operating system. Dell recommends customers to upgrade at the earliest opportunity.
Conclusion & alert: CVE-2025-22398 is rated Moderate Risk (57.7/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.34%). 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 | 2026-05-06 | 1.59% | 0.34% | -1.25% |
| 2 | 2026-01-22 | 0.79% | 1.59% | +0.80% |
| 3 | 2026-01-12 | — | 0.79% | — |
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] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| dell | unity_operating_environment | < 5.5.0.0.5.259 | cpe:2.3:a:dell:unity_operating_environment:*:*:*:*:*:*:*:* |