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Fencer Vulns
low 2.6

CVE-2006-5614 json

Microsoft Windows NAT Helper Components (ipnathlp.dll) on Windows XP SP2, when Internet Connection Sharing is enabled, allows remote attack…

published 2006-10-31 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-5599

cvss
2.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
79.6%
EPSS 79.6% chance of exploitation in 30 days, percentile 99.6%
public exploits
3
Metasploit, Exploit-DB

Summary

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.

Timeline

  1. First public exploit (Metasploit auxiliary/dos/windows/nat/nat_helper)
  2. Published

Exploit prediction

79.58% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 2.6 AV:N/AC:H/Au:N/C:N/I:N/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.