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Tool Directory

CVE-2000-0763

HighPublished

xlockmore and xlockf do not properly cleanse user-injected format strings, which allows local users to gain root privileges via the -d option.

Published: Oct 13, 2000
Updated: Aug 8, 2024
Assigning CNA: mitre
Evidence observed: Aug 15, 2000

Primary CVSS

7.2/ 10High

nvd · CVSS 2.0

AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS probability estimate

1.2%

Low · next 30 days

Percentile: 67.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

xlockmore and xlockf do not properly cleanse user-injected format strings, which allows local users to gain root privileges via the -d option.

Sources

David Bagley xlock 4.16 - User Supplied Format String (1)Exploit
noir · unix · Aug 15, 2000
David Bagley xlock 4.16 - User Supplied Format String (2)Exploit
Ben Williams · unix · Oct 21, 2000

Responsible use

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