CVE-2006-0021

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 62.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2006-02-14 · updated 2026-06-16
Weakness: CWE-119

Description

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."

Affected products

Microsoft Windows 2003 Server: datacenter_64-bit-sp1, enterprise, enterprise-sp1, enterprise_64-bit, r2, r2-sp1 (+5)
Microsoft Windows XP Service Pack 3: all versions

References

http://secunia.com/advisories/18853
http://securitytracker.com/id?1015629
http://www.kb.cert.org/vuls/id/839284
http://www.securiteam.com/exploits/5PP0T0KI0O.html
http://www.securityfocus.com/archive/1/482658/30/4350/threaded
http://www.securityfocus.com/bid/16645
http://www.us-cert.gov/cas/techalerts/TA06-045A.html
http://www.vupen.com/english/advisories/2006/0576
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-007
https://exchange.xforce.ibmcloud.com/vulnerabilities/24489
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1310
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1425

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