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Fencer Vulns
medium 5.0

CVE-2005-1649 json

The IPv6 support in Windows XP SP2, 2003 Server SP1, and Longhorn, with Windows Firewall turned off, allows remote attackers to cause a den…

published 2005-05-18 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-1651

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
21.8%
EPSS 21.8% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

The IPv6 support in Windows XP SP2, 2003 Server SP1, and Longhorn, with Windows Firewall turned off, allows remote attackers to cause a denial of service (CPU consumption) via a TCP packet with the SYN flag set and the same destination and source address and port, a variant of CVE-2005-0688 and a reoccurrence of the "Land" vulnerability (CVE-1999-0016).

Timeline

  1. First public exploit (EDB-861)
  2. Published

Exploit prediction

21.78% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-861 Microsoft Windows XP/2003 - Remote Denial of Service dos, 2005-03-07
  • ntbugtraq.com http://www.ntbugtraq.com/default.aspx?pid=36&sid=1&A2=ind0505&L=NTBUGTRAQ&P=R409&D=0&F=N&H=0&O=D&T=0 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/13658 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/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.