CVE-2005-1649

mediumEPSS 0.218 · 98 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

21.8% (98th) EPSS

CVSS 5 · medium

Is it mine?

8 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-17

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).

cvss

Technical severity, 0–10. One row per scoring source.

5.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

weaknesses

The CWE weakness classes this flaw belongs to.

No weakness (CWE) mapping recorded.

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-861Microsoft Windows XP/2003 - Remote Denial of Servicefunctional · exploit_db

affected products (8)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
microsoft windows 2003 server= datacenter_64-bitnvdUScpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:*
microsoft windows 2003 server= enterprisenvdUScpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:*
microsoft windows 2003 server= enterprise_64-bitnvdUScpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:*
microsoft windows 2003 server= r2nvdUScpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:*
microsoft windows 2003 server= standardnvdUScpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:*
microsoft windows 2003 server= webnvdUScpe:2.3:o:microsoft:windows_2003_server:*:*:*:*:*:*:*:*
microsoft windows xpall versionsnvdUScpe:2.3:o:microsoft:windows_xp:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org

published 2005-05-18modified 2026-06-16

references (6)

External citations — patches, advisories, analysis.

scry

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