CVE-2000-1221

CVE-2000-1221 is a critical-severity vulnerability in Sgi Irix with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

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.

Frequently asked questions

What is CVE-2000-1221?
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 severe is CVE-2000-1221?
CVE-2000-1221 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2000-1221 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-1221?
CVE-2000-1221 primarily affects Sgi Irix. In total, 31 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-1221?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2000-1221 published?
CVE-2000-1221 was published on 2000-01-08 and last updated on 2026-06-16.

References

Affected products (31)

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