CVE-2000-1221
HIGHEPSS 97th pctlDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
Very high risk: more likely to be exploited than 97% of all known CVEs.
References
Related Vulnerabilities
Other vulnerabilities affecting lpr, ordered by exploit likelihood.
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2000-1220 | High | 10.0 | 14% | - | Fix |
| CVE-2003-0146 | High | 7.5 | 6.5% | - | Fix |
| CVE-2003-0144 | High | 7.2 | 1.9% | - | Fix |
Common questions
How do I fix CVE-2000-1221?
Upgrade lpr on debian 11 to 1:0.48-1 or later.
Is CVE-2000-1221 being actively exploited?
Not that we know of. CVE-2000-1221 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 16.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 97% of all scored CVEs.
How severe is CVE-2000-1221?
CVE-2000-1221 has a CVSS v2 base score of 10.0, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2000-1221 affect?
Published advisories record a fix for lpr (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.