---
id: CVE-1999-0123
title: Race condition in Linux mailx command allows local users to read user files.
summary: Race condition in Linux mailx command allows local users to read user files.
severity: low
cvss: 3.7
cvssVector: 'AV:L/AC:H/Au:N/C:P/I:P/A:P'
published: '1995-12-01'
updated: '2026-06-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-1999-0123'
references:
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0123'
    label: cve@mitre.org
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0123'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.003
epssPercentile: 0.20121
ingestedAt: '2026-06-22T15:59:08.050Z'
---

## Overview

Race condition in Linux mailx command allows local users to read user files.

## Remediation

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