CVE-2001-0414

CVE-2001-0414 is a critical-severity vulnerability in Dave Mills Ntpd with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 92% places it in the 100th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Buffer overflow in ntpd ntp daemon 4.0.99k and earlier (aka xntpd and xntp3) allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long readvar argument.

Frequently asked questions

What is CVE-2001-0414?
Buffer overflow in ntpd ntp daemon 4.0.99k and earlier (aka xntpd and xntp3) allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long readvar argument.
How severe is CVE-2001-0414?
CVE-2001-0414 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2001-0414 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 92% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0414?
CVE-2001-0414 primarily affects Dave Mills Ntpd. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0414?
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-2001-0414 published?
CVE-2001-0414 was published on 2001-06-18 and last updated on 2026-06-16.

References

Affected products (18)

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