---
id: CVE-1999-0509
title: >-
  Perl, sh, csh, or other shell interpreters are installed in the cgi-bin
  directory on a WWW site, which allows remote attackers to execute arbitrary
  commands.
summary: >-
  Perl, sh, csh, or other shell interpreters are installed in the cgi-bin
  directory on a WWW site, which allows remote attackers to execute arbitrary
  commands.
severity: critical
cvss: 10
cvssVector: 'AV:N/AC:L/Au:N/C:C/I:C/A:C'
cwe:
  - CWE-94
published: '1996-05-29'
updated: '2026-06-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-1999-0509'
references:
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/146'
    label: cve@mitre.org
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/146'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.33392
epssPercentile: 0.98301
ingestedAt: '2026-06-22T15:59:08.075Z'
---

## Overview

Perl, sh, csh, or other shell interpreters are installed in the cgi-bin directory on a WWW site, which allows remote attackers to execute arbitrary commands.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.