---
id: CVE-1999-0131
title: >-
  Buffer overflow and denial of service in Sendmail 8.7.5 and earlier through
  GECOS field gives root access to local users.
summary: >-
  Buffer overflow and denial of service in Sendmail 8.7.5 and earlier through
  GECOS field gives root access to local users.
severity: high
cvss: 7.2
cvssVector: 'AV:L/AC:L/Au:N/C:C/I:C/A:C'
published: '1996-09-11'
updated: '2026-06-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-1999-0131'
references:
  - url: 'http://www.securityfocus.com/bid/717'
    label: cve@mitre.org
  - url: 'http://www.securityfocus.com/bid/717'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00571
epssPercentile: 0.44849
ingestedAt: '2026-06-22T15:59:08.099Z'
---

## Overview

Buffer overflow and denial of service in Sendmail 8.7.5 and earlier through GECOS field gives root access to local users.

## Remediation

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