CVE-2006-0021

highpriority · attend · 63EPSS 0.629 · 99 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · functional

Likely / severe?

62.9% (99th) EPSS

CVSS 7.8 · high

Is it mine?

9 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

Microsoft Windows XP SP1 and SP2, and Server 2003 up to SP1, allows remote attackers to cause a denial of service (hang) via an IGMP packet with an invalid IP option, aka the "IGMP v3 DoS Vulnerability."

cvss

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

7.8

010

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

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:C/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimary

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-1599Microsoft Windows XP/2003 - IGMP v3 Denial of Service (MS06-007) (1)functional · exploit_db
EDB-1603Microsoft Windows XP/2003 - IGMP v3 Denial of Service (MS06-007) (2)functional · exploit_db

affected products (9)

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= standard_64-bitnvdUScpe: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 MITRE

published 2006-02-14modified 2026-06-16

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Related entries.

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+21023 more

references (32)

External citations — patches, advisories, analysis.

scry

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