Skip to content
Fencer Vulns
critical 10.0

CVE-2006-3440 in the critical feed json

Buffer overflow in the Winsock API in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 allows remote attackers to execute ar…

published 2006-08-09 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-3436

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
57.3%
EPSS 57.3% chance of exploitation in 30 days, percentile 99%
public exploits
1
Exploit-DB

Summary

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."

Patch / fix

Timeline

  1. Published
  2. First public exploit (EDB-2900)

Exploit prediction

57.30% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-2900 Microsoft Windows - DNS Resolution Remote Denial of Service (PoC) (MS06-041) dos, 2006-12-09

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.