CVE-2006-3440 Memory corruption in n/a

What is CVE-2006-3440?

CVE-2006-3440 is a critical memory corruption vulnerability in Microsoft Windows 2000, published on 9 Aug 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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."

Which versions are affected by CVE-2006-3440?

It affects 3 products.

Products include Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Xp.

How do I fix CVE-2006-3440?

No fix has been published for CVE-2006-3440 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2006-3440 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-3440 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Microsoft Windows 2000

• CVE-2008-4250 Microsoft Windows Buffer Overflow Exploited Critical 9.8
• CVE-2010-0232 Microsoft Windows Kernel Exception Handler Exploited High 7.8
• CVE-2009-1123 Microsoft Windows Improper Input Validation Exploited High 7.8
• CVE-2002-0367 Microsoft Windows Privilege Escalation Exploited High 7.8
• CVE-2010-0269 Memory corruption in n/a Critical 10.0

All Microsoft Windows 2000 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-mjvg-6mfv-5vwr.