Stack-based buffer overflow in the ssl_util_uuencode_binary function in ssl_util.c for Apache mod_ssl, when mod_ssl is configured to trust the issuing CA, may allow remote attackers to execute arbitrary code via a client certificate with a long subject DN.
Conclusion & alert: CVE-2004-0488 is rated Moderate Risk (59.4/100): CVSS High severity, with high exploitation likelihood (EPSS 37.68%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. 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 | 62.66% | 37.68% | -24.98% |
| 2 | 2026-03-04 | 30.82% | 62.66% | +31.84% |
| 3 | 2026-03-01 | — | 30.82% | — |
Full EPSS history (45 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 |
|---|---|---|---|
debian
|
not yet assigned | CVE-2004-0488 not yet assigned priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2004-0488 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2004-0488 |
ubuntu
|
medium | CVE-2004-0488 medium priority: Ubuntu including 1 source packages (apache2), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. | https://ubuntu.com/security/CVE-2004-0488 |
Fixed in Apache HTTP Server 2.0.50: http://httpd.apache.org/security/vulnerabilities_20.html
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apache | http_server | >= 2.0.35, < 2.0.50 | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
| debian | debian_linux | 3.0 | cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 2.0 | cpe:2.3:o:redhat:enterprise_linux_server:2.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 2.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:2.0:*:*:*:*:*:*:* |