VULNERABILITY INTELLIGENCE
CVE-2000-1221
CVSS score10 HIGH
EPSS probability16.73%
CISA KEVNot currently listed
Published2000-01-08
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Description
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.