CVE-2000-1221

High CVSS 10

Published 2000-01-08 · last changed 2026-06-16

The fix

We hold no Microsoft remediation data for CVE-2000-1221, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reverse-resolved hostname of the local machine to the hostname of the print server as returned by gethostname, which allows remote attackers to bypass intended access controls by modifying the DNS for the attacking IP.

Sources

NVD record for CVE-2000-1221

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