VMware GSX Server 2.5.1 build 4968 and earlier, and Workstation 4.0 and earlier, allows local users to gain root privileges via certain enivronment variables that are used when launching a virtual machine session.
Conclusion & alert: CVE-2003-0631 is rated Low Risk (39.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.38%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 0.04% | 0.38% | +0.34% |
| 2 | 2023-03-07 | 0.89% | 0.04% | -0.84% |
| 3 | 2022-02-04 | — | 0.89% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| vmware | gsx_server | 2.5.1 | cpe:2.3:a:vmware:gsx_server:2.5.1:*:*:*:*:*:*:* |
| vmware | workstation | 4.0 | cpe:2.3:a:vmware:workstation:4.0:*:*:*:*:*:*:* |