---
id: CVE-1999-1253
title: >-
  Vulnerability in a kernel error handling routine in SCO OpenServer 5.0.2 and
  earlier, and SCO Internet FastStart 1.0, allows local users to gain root
  privileges.
summary: >-
  Vulnerability in a kernel error handling routine in SCO OpenServer 5.0.2 and
  earlier, and SCO Internet FastStart 1.0, allows local users to gain root
  privileges.
severity: high
cvss: 7.2
cvssVector: 'AV:L/AC:L/Au:N/C:C/I:C/A:C'
published: '1996-06-07'
updated: '2026-06-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-1999-1253'
references:
  - url: 'ftp://ftp.sco.com/SSE/security_bulletins/SB.96:01a'
    label: cve@mitre.org
  - url: 'http://www.cert.org/vendor_bulletins/VB-96.10.sco'
    label: cve@mitre.org
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/1965'
    label: cve@mitre.org
  - url: 'ftp://ftp.sco.com/SSE/security_bulletins/SB.96:01a'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.cert.org/vendor_bulletins/VB-96.10.sco'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/1965'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00386
epssPercentile: 0.32574
ingestedAt: '2026-06-22T15:59:08.078Z'
---

## Overview

Vulnerability in a kernel error handling routine in SCO OpenServer 5.0.2 and earlier, and SCO Internet FastStart 1.0, allows local users to gain root privileges.

## Remediation

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