Which products and versions are affected by CVE-2006-5614?

Affected: Windows Nt Helper Components (Microsoft); Windows Xp (Microsoft). The full list is in the CVE brief.

Is CVE-2006-5614 being exploited in the wild?

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

Is CVE-2006-5614 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-2006-5614?

Public exploit code is available.

Is there a fix for CVE-2006-5614?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2006-5614 be patched?

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

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Vulnerability Intelligence

CVE-2006-5614

LowPublic exploit

Microsoft Windows NAT Helper Components (ipnathlp.dll) on Windows XP SP2, when Internet Connection Sharing is enabled, allows remote attackers to cause a denial of service (svchost.exe crash) via a malformed DNS query, which results in a null pointer dereference.

Published Oct 30, 2006 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2006-5614 is a low-severity vulnerability (CVSS 2.6 v2) affecting Windows Nt Helper Components (Microsoft), Windows Xp (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 80% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

2.6

AV:N/AC:H/Au:N/C:N/I:N/A:P

EPSS (30-day exploit likelihood)

80%

Higher than 99.6% 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-2006-5614 brief as a PDF

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

Description

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Windows Nt Helper ComponentsMicrosoft	See advisory	n/a
Windows XpMicrosoft	See advisory	n/a

Timeline

Publicly disclosed
Oct 30, 2006
Last updated
Apr 22, 2026

References

advisory22592
exploitExploitDB-2682
otherhttp://research.eeye.com/html/alerts/zeroday/20061028.html
other1017133
otherwin-ipnathlp-dos(29917)

4 more references in the full CVE brief

FAQ

Common Questions.

Microsoft Windows NAT Helper Components (ipnathlp.dll) on Windows XP SP2, when Internet Connection Sharing is enabled, allows remote attackers to cause a denial of service (svchost.exe crash) via a malformed DNS query, which results in a null pointer dereference.
Affected: Windows Nt Helper Components (Microsoft); Windows Xp (Microsoft). 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.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2006-5614 Running On Your Attack Surface?

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