CVE-1999-0236
HIGHEPSS 98th pctlDescription
ScriptAlias directory in NCSA and Apache httpd allowed attackers to read CGI programs.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
Very high risk: more likely to be exploited than 98% of all known CVEs.
References
Related Vulnerabilities
Other vulnerabilities affecting httpd, ordered by exploit likelihood.
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-38475 | Critical | 9.1 | 100% | KEV | Fix |
| CVE-2011-3192 | High | 7.8 | 99% | - | Fix |
| CVE-2021-44790 | Critical | 9.8 | 97% | - | Fix |
| CVE-2006-3747 | High | 7.6 | 96% | - | Fix |
| CVE-2006-3918 | Medium | 4.3 | 95% | - | Fix |
| CVE-2010-0425 | High | 10.0 | 94% | - | Fix |
Common questions
How do I fix CVE-1999-0236?
Upgrade httpd to 1.0 or later.
Is CVE-1999-0236 being actively exploited?
Not that we know of. CVE-1999-0236 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 25.8% is the estimated probability that it will be exploited in the next 30 days. That is higher than 98% of all scored CVEs.
How severe is CVE-1999-0236?
CVE-1999-0236 has a CVSS v3 base score of 7.5, 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.
What does CVE-1999-0236 affect?
Published advisories record a fix for httpd (Windows application). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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Markdown
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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.