VYPR
Unrated severityNVD Advisory· Published Sep 8, 2009· Updated Jun 16, 2026

CVE-2009-1926

CVE-2009-1926

Description

Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allow remote attackers to cause a denial of service (TCP outage) via a series of TCP sessions that have pending data and a (1) small or (2) zero receive window size, and remain in the FIN-WAIT-1 or FIN-WAIT-2 state indefinitely, aka "TCP/IP Orphaned Connections Vulnerability."

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

18
  • cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*+ 5 more
    • cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:itanium:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x64:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x86:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:-:-:x32:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2008:-:-:x64:*:*:*:*:*
  • Microsoft/Windows7 versions
    cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*+ 6 more
    • cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_vista:-:-:x64:*:*:*:*:*
    • (no CPE)range: multiple versions (2000 SP4, XP SP2/SP3, 2003 SP2, Vista Gold/SP1/SP2, 2008 Gold/SP2)
  • cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_xp:*:sp2:professional:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

7

News mentions

0

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