Netscape Enterprise 3.5.1 and FastTrack 3.01 servers allow a remote attacker to view source code to scripts by appending a %20 to the script's URL.
Conclusion & alert: CVE-1999-0758 is rated Moderate Risk (44.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.65%). 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 | 2025-08-27 | 0.81% | 0.65% | -0.17% |
| 2 | 2025-03-30 | 0.91% | 0.81% | -0.09% |
| 3 | 2025-03-29 | — | 0.91% | — |
Full EPSS history (7 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] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| netscape | enterprise_server | 3.5.1 | cpe:2.3:a:netscape:enterprise_server:3.5.1:*:*:*:*:*:*:* |
| netscape | fasttrack_server | 3.01 | cpe:2.3:a:netscape:fasttrack_server:3.01:*:*:*:*:*:*:* |