Quake II server before R1Q2, as used in multiple products, allows remote attackers to cause a denial of service (exhaustion of connection slots) via a large number of connections from the same IP address.
Conclusion & alert: CVE-2004-2596 is rated Moderate Risk (46.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.27%). 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 | 2025-03-17 | 1.90% | 1.27% | -0.62% |
| 2 | 2024-11-05 | 2.64% | 1.90% | -0.75% |
| 3 | 2023-03-07 | — | 2.64% | — |
Full EPSS history (4 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 |
|---|---|---|---|
| id_software | quake_ii_server | 3.20 | cpe:2.3:a:id_software:quake_ii_server:3.20:*:*:*:*:*:*:* |
| id_software | quake_ii_server | 3.21 | cpe:2.3:a:id_software:quake_ii_server:3.21:*:*:*:*:*:*:* |