Vulnerability Report

CVE-2009-1926

Title: Microsoft Windows 2000 Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2009-1926.

CWE Category NVD-CWE-noinfo
Published Date Sep 08, 2009
Modified Date Jun 16, 2026
Exploit Status Not Found
Score 7.8 CVSS v2.0
Exploit Probability (EPSS)
35.04%

Vulnerability Summary

CVE-2009-1926: 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."

Impacted Vendors

M
microsoft 5

Reference Links

http://osvdb.org/57797 http://www.recurity-labs.com/content/pub/Microsoft_Windows_CVE-2009-1926 http://www.securityfocus.com/archive/1/506331/100/0/threaded http://www.securityfocus.com/bid/36269 http://www.us-cert.gov/cas/techalerts/TA09-251A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5965 http://osvdb.org/57797 http://www.recurity-labs.com/content/pub/Microsoft_Windows_CVE-2009-1926 http://www.securityfocus.com/archive/1/506331/100/0/threaded http://www.securityfocus.com/bid/36269 http://www.us-cert.gov/cas/techalerts/TA09-251A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5965
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2009-1926 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected Stack

No specific products linked.