Non-registered IRC users using (1) ircd-hybrid 7.0.1 and earlier, (2) ircd-ratbox 1.5.1 and earlier, or (3) ircd-ratbox 2.0rc6 and earlier do not have a rate-limit imposed, which could allow remote attackers to cause a denial of service by repeatedly making requests, which are slowly dequeued.
Conclusion & alert: CVE-2004-0605 is rated High Exploit Risk (64.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 5.17%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). 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 |
|---|---|---|---|---|
| 24222 | exploit_db | edb | 2004-06-19 | 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 | 2025-03-30 | 6.77% | 5.17% | -1.60% |
| 2 | 2025-03-29 | 5.17% | 6.77% | +1.60% |
| 3 | 2025-03-17 | — | 5.17% | — |
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 |
|---|---|---|---|
| ircd-hybrid | ircd-hybrid | <= 7.0.1 | cpe:2.3:a:ircd-hybrid:ircd-hybrid:*:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | <= 1.5.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:*:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | <= 2.0_rc6 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:*:*:*:*:*:*:*:* |