How severe is CVE-2000-1066?

CVE-2000-1066 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-1066 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-1066?

CVE-2000-1066 primarily affects Freebsd. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-1066?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2000-1066 published?

CVE-2000-1066 was published on 2000-12-11 and last updated on 2026-06-16.

CVE-2000-1066

CVE-2000-1066 is a medium-severity vulnerability in Freebsd with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Freebsd
Published: 2000-12-11
Last modified: 2026-06-16

Description

The getnameinfo function in FreeBSD 4.1.1 and earlier, and possibly other operating systems, allows a remote attacker to cause a denial of service via a long DNS hostname.

Frequently asked questions

What is CVE-2000-1066?: The getnameinfo function in FreeBSD 4.1.1 and earlier, and possibly other operating systems, allows a remote attacker to cause a denial of service via a long DNS hostname.
How severe is CVE-2000-1066?: CVE-2000-1066 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-1066 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-1066?: CVE-2000-1066 primarily affects Freebsd. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-1066?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-1066 published?: CVE-2000-1066 was published on 2000-12-11 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:o:freebsd:freebsd:4.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.0:alpha:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.1:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.1.1:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.1.1:release:*:*:*:*:*:*

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