Multiple integer overflows in the font libraries for XFree86 4.3.0 allow local or remote attackers to cause a denial of service or execute arbitrary code via heap-based and stack-based buffer overflow attacks.
Conclusion & alert: CVE-2003-0730 is rated Moderate Risk (61.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 5.66%). 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 | 2025-03-30 | 5.49% | 5.66% | +0.17% |
| 2 | 2025-03-29 | 5.66% | 5.49% | -0.17% |
| 3 | 2025-03-17 | — | 5.66% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2003-0730 |
ubuntu
|
medium | CVE-2003-0730 medium priority: Ubuntu including 1 source packages (xorg), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. | https://ubuntu.com/security/CVE-2003-0730 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xfree86_project | x11r6 | 4.2.1 | cpe:2.3:a:xfree86_project:x11r6:4.2.1:*:*:*:*:*:*:* |
| xfree86_project | x11r6 | 4.3.0 | cpe:2.3:a:xfree86_project:x11r6:4.3.0:*:*:*:*:*:*:* |
| netbsd | netbsd | 1.5 | cpe:2.3:o:netbsd:netbsd:1.5:*:*:*:*:*:*:* |
| netbsd | netbsd | 1.5.1 | cpe:2.3:o:netbsd:netbsd:1.5.1:*:*:*:*:*:*:* |
| netbsd | netbsd | 1.5.2 | cpe:2.3:o:netbsd:netbsd:1.5.2:*:*:*:*:*:*:* |
| netbsd | netbsd | 1.5.3 | cpe:2.3:o:netbsd:netbsd:1.5.3:*:*:*:*:*:*:* |
| netbsd | netbsd | 1.6 | cpe:2.3:o:netbsd:netbsd:1.6:*:*:*:*:*:*:* |
| netbsd | netbsd | 1.6.1 | cpe:2.3:o:netbsd:netbsd:1.6.1:*:*:*:*:*:*:* |