---
id: CVE-1999-0234
title: Bash treats any character with a value of 255 as a command separator.
summary: Bash treats any character with a value of 255 as a command separator.
severity: medium
cvss: 4.6
cvssVector: 'AV:L/AC:L/Au:N/C:P/I:P/A:P'
published: '1996-10-08'
updated: '2026-06-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-1999-0234'
references:
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0234'
    label: cve@mitre.org
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0234'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.004
epssPercentile: 0.31392
ingestedAt: '2026-06-22T15:59:08.115Z'
---

## Overview

Bash treats any character with a value of 255 as a command separator.

## Remediation

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