Kerio WinRoute Firewall before 6.0.9 uses information from PTR queries in response to A queries, which allows remote attackers to poison the DNS cache or cause a denial of service (connection loss).
Conclusion & alert: CVE-2004-2483 is rated Moderate Risk (52/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.70%). 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 | 1.27% | 1.70% | +0.43% |
| 2 | 2025-03-17 | 1.42% | 1.27% | -0.15% |
| 3 | 2024-12-17 | — | 1.42% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.4 | 2.0 | MEDIUM |
|
10.0 | 4.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| kerio | winroute_firewall | 6.0 | cpe:2.3:a:kerio:winroute_firewall:6.0:*:*:*:*:*:*:* |
| kerio | winroute_firewall | 6.0.1 | cpe:2.3:a:kerio:winroute_firewall:6.0.1:*:*:*:*:*:*:* |
| kerio | winroute_firewall | 6.0.2 | cpe:2.3:a:kerio:winroute_firewall:6.0.2:*:*:*:*:*:*:* |
| kerio | winroute_firewall | 6.0.3 | cpe:2.3:a:kerio:winroute_firewall:6.0.3:*:*:*:*:*:*:* |
| kerio | winroute_firewall | 6.0.4 | cpe:2.3:a:kerio:winroute_firewall:6.0.4:*:*:*:*:*:*:* |
| kerio | winroute_firewall | 6.0.5 | cpe:2.3:a:kerio:winroute_firewall:6.0.5:*:*:*:*:*:*:* |
| kerio | winroute_firewall | 6.0.6 | cpe:2.3:a:kerio:winroute_firewall:6.0.6:*:*:*:*:*:*:* |
| kerio | winroute_firewall | 6.0.7 | cpe:2.3:a:kerio:winroute_firewall:6.0.7:*:*:*:*:*:*:* |
| kerio | winroute_firewall | 6.0.8 | cpe:2.3:a:kerio:winroute_firewall:6.0.8:*:*:*:*:*:*:* |