CVE & CISA-KEV Catalog

CVE-1999-0067

HIGHEPSS 100th pctl
10.0
CVSS v2
NVD

Description

phf CGI program allows remote command execution through shell metacharacters.

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

86.87%probability of exploitation in 30 days
100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Third-Party Advisory2
Other references1

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2021-1498Critical9.8100%KEVFix
CVE-2014-6271Critical9.8100%KEVFix
CVE-2019-16920Critical9.8100%KEV-
CVE-2022-44877Critical9.8100%KEVFix
CVE-2020-8515Critical9.8100%KEV-
CVE-2020-9054Critical9.8100%KEVFix

Common questions

How do I fix CVE-1999-0067?

No published fix for CVE-1999-0067 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

Is CVE-1999-0067 being actively exploited?

Not that we know of. CVE-1999-0067 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 86.9% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-1999-0067?

CVE-1999-0067 has a CVSS v2 base score of 10.0, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Embed a live status badge for CVE-1999-0067
CVE-1999-0067 severity badge

Markdown

[![CVE-1999-0067](https://tridentstack.com/cve/badge/CVE-1999-0067.svg)](https://tridentstack.com/cve/CVE-1999-0067)

HTML

<a href="https://tridentstack.com/cve/CVE-1999-0067"><img src="https://tridentstack.com/cve/badge/CVE-1999-0067.svg" alt="CVE-1999-0067"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it worksStart freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.