bigconf.conf in F5 BIG/ip 2.1.2 and earlier allows remote attackers to read arbitrary files by specifying the target file in the "file" parameter.
Conclusion & alert: CVE-1999-1550 is rated Moderate Risk (58/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.59%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +6.33% over the last day, indicating growing attacker interest. 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 | 2026-06-15 | 2.27% | 8.59% | +6.33% |
| 2 | 2026-04-28 | 2.96% | 2.27% | -0.69% |
| 3 | 2025-12-31 | — | 2.96% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |