BMC Patrol component, when installed with Compaq Insight Management Agent 4.23 and earlier, or Management Agents for Servers 4.40 and earlier, creates a PFCUser account with a default password and potentially dangerous privileges.
Conclusion & alert: CVE-1999-1355 is rated Moderate Risk (55.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.51%). 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 | 0.74% | 1.51% | +0.77% |
| 2 | 2025-03-30 | 0.84% | 0.74% | -0.09% |
| 3 | 2025-03-29 | — | 0.84% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| compaq | insight_management_agent | <= 4.20 | cpe:2.3:a:compaq:insight_management_agent:*:*:*:*:*:*:*:* |
| compaq | management_agents_for_servers | <= 4.40 | cpe:2.3:a:compaq:management_agents_for_servers:*:*:*:*:*:*:*:* |