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Vulnerability record · CVE-2000-1227 · published 31 December 2000

CVE-2000-1227: Microsoft windows 2000 vulnerability

Microsoft · Windows 2000

Windows NT 4.0 and Windows 2000 hosts allow remote attackers to cause a denial of service (unavailable connections) by sending multiple SMB SMBnegprots requests but not reading the response that is sent back.

5.0 CVSS 2.0 Medium EPSS 13% · top 3.8%
5.0CVSS 2.0 base score
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
23 Sep 2026Last modified by NVD

Description

Windows NT 4.0 and Windows 2000 hosts allow remote attackers to cause a denial of service (unavailable connections) by sending multiple SMB SMBnegprots requests but not reading the response that is sent back.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/archive/1/63322
http://www.securityfocus.com/bid/1301
http://www.securityfocus.com/archive/1/63322
http://www.securityfocus.com/bid/1301

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2000-1227), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.