Windows NT Terminal Server performs extra work when a client opens a new connection but before it is authenticated, allowing for a denial of service.
Conclusion & alert: CVE-1999-0680 is rated High Exploit Risk (68.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.73%, 92th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.23% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 4.50% | 5.73% | +1.23% |
| 2 | 2026-06-13 | 5.98% | 4.50% | -1.49% |
| 3 | 2026-05-10 | — | 5.98% | — |
Full EPSS history (13 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 |
|---|---|---|---|
| microsoft | terminal_server | — | cpe:2.3:a:microsoft:terminal_server:*:*:*:*:*:*:*:* |