Buffer overflow in ReadFontAlias from dirfile.c of XFree86 4.1.0 through 4.3.0 allows local users and remote attackers to execute arbitrary code via a font alias file (font.alias) with a long token, a different vulnerability than CVE-2004-0084 and CVE-2004-0106.
Conclusion & alert: CVE-2004-0083 is rated High Exploit Risk (94/100): CVSS Critical severity, with high exploitation likelihood (EPSS 21.18%, 97th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +18.77% over the last day, indicating growing attacker interest. 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 |
|---|---|---|---|---|
| 23682 | exploit_db | edb | 2004-11-10 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | 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 | 2026-06-15 | 2.40% | 21.18% | +18.77% |
| 2 | 2025-10-19 | 2.12% | 2.40% | +0.29% |
| 3 | 2025-03-30 | — | 2.12% | — |
Full EPSS history (10 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 | priority | summary | link |
|---|---|---|---|
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2004-0083 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2004-0083/ |
ubuntu
|
medium | CVE-2004-0083 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-2004-0083 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xfree86_project | x11r6 | 4.1.0 | cpe:2.3:a:xfree86_project:x11r6:4.1.0:*:*:*:*:*:*:* |
| xfree86_project | x11r6 | 4.1.11 | cpe:2.3:a:xfree86_project:x11r6:4.1.11:*:*:*:*:*:*:* |
| xfree86_project | x11r6 | 4.1.12 | cpe:2.3:a:xfree86_project:x11r6:4.1.12:*:*:*:*:*:*:* |
| xfree86_project | x11r6 | 4.2.0 | cpe:2.3:a:xfree86_project:x11r6:4.2.0:*:*:*:*:*:*:* |
| xfree86_project | x11r6 | 4.2.1 | cpe:2.3:a:xfree86_project:x11r6:4.2.1:*:*:*:*:*:*:* |
| xfree86_project | x11r6 | 4.2.1 | cpe:2.3:a:xfree86_project:x11r6:4.2.1:*:errata:*:*:*:*:* |
| xfree86_project | x11r6 | 4.3.0 | cpe:2.3:a:xfree86_project:x11r6:4.3.0:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.3 | cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:* |
| openbsd | openbsd | 3.4 | cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:* |