CVE-2005-1184

CVE-2005-1184 is a medium-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 37% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 37% (98th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Microsoft Windows 2000
• Published: 2005-05-02
• Last modified: 2026-06-16

Description

The TCP/IP stack in multiple operating systems allows remote attackers to cause a denial of service (CPU consumption) via a TCP packet with the correct sequence number but the wrong Acknowledgement number, which generates a large number of "keep alive" packets. NOTE: some followups indicate that this issue could not be replicated.

Frequently asked questions

What is CVE-2005-1184?

The TCP/IP stack in multiple operating systems allows remote attackers to cause a denial of service (CPU consumption) via a TCP packet with the correct sequence number but the wrong Acknowledgement number, which generates a large number of "keep alive" packets. NOTE: some followups indicate that this issue could not be replicated.

How severe is CVE-2005-1184?

CVE-2005-1184 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-1184 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 37% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-1184?

CVE-2005-1184 primarily affects Microsoft Windows 2000. In total, 55 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-1184?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2005-1184 published?

CVE-2005-1184 was published on 2005-05-02 and last updated on 2026-06-16.

References

• http://seclists.org/lists/fulldisclosure/2005/Apr/0358.html
• http://seclists.org/lists/fulldisclosure/2005/Apr/0383.html
• http://seclists.org/lists/fulldisclosure/2005/Apr/0385.html
• http://www.securityfocus.com/bid/13215
• https://exchange.xforce.ibmcloud.com/vulnerabilities/40502

Affected products (55)

• cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:datacenter_64-bit:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:enterprise:*:64-bit:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:enterprise:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:enterprise_64-bit:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:enterprise_64-bit:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:r2:*:64-bit:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:r2:*:datacenter_64-bit:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:r2:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:standard:*:64-bit:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:standard:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:standard_64-bit:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:web:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_2003_server:web:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_98se:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:*:enterprise_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:*:server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:*:terminal_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:*:workstation:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp1:enterprise_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp1:server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp1:terminal_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp1:workstation:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp2:enterprise_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp2:server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp2:terminal_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp2:workstation:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp3:enterprise_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp3:server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp3:terminal_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp3:workstation:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp4:enterprise_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp4:server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp4:terminal_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp4:workstation:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp5:enterprise_server:*:*:*:*:*

More vulnerabilities in Microsoft Windows 2000

• CVE-2010-0269 — Critical (CVSS 10.0): The SMB client in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1,…
• CVE-2010-0231 — Critical (CVSS 10.0): The SMB implementation in the Server service in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003…
• CVE-2009-3677 — Critical (CVSS 10.0): The Internet Authentication Service (IAS) in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold…
• CVE-2009-2523 — Critical (CVSS 10.0): The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code…
• CVE-2009-1925 — Critical (CVSS 10.0): The TCP/IP implementation in Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 does not properly…
• CVE-2009-1930 — Critical (CVSS 10.0): The Telnet service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server…

All CVEs affecting Microsoft Windows 2000 →