Format string vulnerability in Half Life dedicated server build 3104 and earlier allows remote attackers to execute arbitrary commands by injecting format strings into the changelevel command, via the system console or rcon.
Conclusion & alert: CVE-2000-0969 is rated High Risk (71.4/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.48%). Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2.70% | 3.48% | +0.78% |
| 2 | 2025-03-30 | 6.96% | 2.70% | -4.26% |
| 3 | 2025-03-29 | — | 6.96% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| valve_software | half-life_dedicated_server | 3.1.3 | cpe:2.3:a:valve_software:half-life_dedicated_server:3.1.3:*:*:*:*:*:*:* |