---
id: CVE-1999-1089
title: >-
  Buffer overflow in chfn command in HP-UX 9.X through 10.20 allows local users
  to gain privileges via a long command line argument.
summary: >-
  Buffer overflow in chfn command in HP-UX 9.X through 10.20 allows local users
  to gain privileges via a long command line argument.
severity: high
cvss: 7.2
cvssVector: 'AV:L/AC:L/Au:N/C:C/I:C/A:C'
published: '1996-12-13'
updated: '2026-06-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-1999-1089'
references:
  - url: 'http://ciac.llnl.gov/ciac/bulletins/h-16.shtml'
    label: cve@mitre.org
  - url: 'http://ciac.llnl.gov/ciac/bulletins/h-21.shtml'
    label: cve@mitre.org
  - url: 'http://marc.info/?l=bugtraq&m=87602167420285&w=2'
    label: cve@mitre.org
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/2008'
    label: cve@mitre.org
  - url: 'http://ciac.llnl.gov/ciac/bulletins/h-16.shtml'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://ciac.llnl.gov/ciac/bulletins/h-21.shtml'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://marc.info/?l=bugtraq&m=87602167420285&w=2'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/2008'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00601
epssPercentile: 0.47442
ingestedAt: '2026-06-22T15:59:08.140Z'
---

## Overview

Buffer overflow in chfn command in HP-UX 9.X through 10.20 allows local users to gain privileges via a long command line argument.

## Remediation

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