CVE-2006-3440

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 57.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2006-08-09 · updated 2026-06-16

Description

Buffer overflow in the Winsock API in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 allows remote attackers to execute arbitrary code via unknown vectors, aka "Winsock Hostname Vulnerability."

Affected products

Microsoft Windows 2000: all versions
Microsoft Windows 2003 Server: 64-bit, sp1
Microsoft Windows XP Service Pack 3: all versions

References

http://secunia.com/advisories/21394
http://securitytracker.com/id?1016653
http://www.kb.cert.org/vuls/id/908276
http://www.securityfocus.com/bid/19319
http://www.us-cert.gov/cas/techalerts/TA06-220A.html
http://www.vupen.com/english/advisories/2006/3211
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-041
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A747
http://secunia.com/advisories/21394
http://securitytracker.com/id?1016653
http://www.kb.cert.org/vuls/id/908276
http://www.securityfocus.com/bid/19319

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