Which products and versions are affected by CVE-2001-0414?

Affected: Ntpd (Dave Mills) versions 4.0.99, 4.0.99a, 4.0.99b, 4.0.99c, 4.0.99d, 4.0.99e, 4.0.99f, 4.0.99g; Xntp3 (Dave Mills) versions 5.93, 5.93a, 5.93b, 5.93c, 5.93d, 5.93e. The full list is in the CVE brief.

Is CVE-2001-0414 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2001-0414 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2001-0414?

Public exploit code is available.

Is there a fix for CVE-2001-0414?

Fixed versions are available, including Ntpd 4.0.99k.

How urgently should CVE-2001-0414 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2001-0414

CriticalPublic exploit

ntpd security hole

Published Apr 4, 2001 · Updated Aug 8, 2024

Key Facts

Patch immediately

CVE-2001-0414 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Ntpd (Dave Mills), Xntp3 (Dave Mills).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 92% probability of exploitation in the next 30 days.
Fixed versions are available, including Ntpd 4.0.99k.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

10.0

AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

92%

Higher than 99.8% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2001-0414 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

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.

Affected Products

18 affected entries in total

Product	Affected versions	Fixed in
NtpdDave Mills	4.0.99, 4.0.99a, 4.0.99b, 4.0.99c, 4.0.99d, 4.0.99e, 4.0.99f, 4.0.99g	4.0.99k
Xntp3Dave Mills	5.93, 5.93a, 5.93b, 5.93c, 5.93d, 5.93e	n/a

Patched Releases

Ntpd

4.0.99k

Timeline

Publicly disclosed
Apr 4, 2001
Last updated
Aug 8, 2024

References

15 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: Ntpd (Dave Mills) versions 4.0.99, 4.0.99a, 4.0.99b, 4.0.99c, 4.0.99d, 4.0.99e, 4.0.99f, 4.0.99g; Xntp3 (Dave Mills) versions 5.93, 5.93a, 5.93b, 5.93c, 5.93d, 5.93e. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Ntpd 4.0.99k.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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