phf CGI program allows remote command execution through shell metacharacters.
Conclusion & alert: CVE-1999-0067 is rated High Risk (75.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 86.87%, 100th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.04% over the last day, indicating growing attacker interest. 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 | 85.83% | 86.87% | +1.04% |
| 2 | 2026-05-12 | 89.04% | 85.83% | -3.21% |
| 3 | 2026-04-27 | — | 89.04% | — |
Full EPSS history (48 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 |
|---|---|---|---|
alpine
|
— | CVE-1999-0067: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-1999-0067 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apache | http_server | 1.0.3 | cpe:2.3:a:apache:http_server:1.0.3:*:*:*:*:*:*:* |
| ncsa | ncsa_httpd | 1.5a | cpe:2.3:a:ncsa:ncsa_httpd:1.5a:*:export:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.cert.org/advisories/CA-1996-06.html | Third Party Advisory US Government Resource |
| http://www.osvdb.org/136 | Broken Link |
| http://www.securityfocus.com/bid/629 | Broken Link Third Party Advisory VDB Entry |