The HP Integrated Lights-Out (iLO) BMC implementation allows remote attackers to bypass authentication and execute arbitrary IPMI commands by using cipher suite 0 (aka cipher zero) and an arbitrary password.
Conclusion & alert: CVE-2013-4784 is rated High Risk (73.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 49.71%, 98th 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 | 2026-05-22 | 50.71% | 49.71% | -1.00% |
| 2 | 2026-02-17 | 49.71% | 50.71% | +1.00% |
| 3 | 2025-09-26 | — | 49.71% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| hp | integrated_lights-out_bmc | — | cpe:2.3:h:hp:integrated_lights-out_bmc:*:*:*:*:*:*:*:* |