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Vulnerability record · CVE-2006-2380 · published 13 June 2006

CVE-2006-2380: Microsoft windows 2000 improper authentication vulnerability

Microsoft · Windows 2000

Microsoft Windows 2000 SP4 does not properly validate an RPC server during mutual authentication over SSL, which allows remote attackers to spoof an RPC server, aka the "RPC Mutual Authentication Vulnerability."

4.3 CVSS 2.0 Medium EPSS 18% · top 2.9% CWE-287 · Improper authentication
4.3CVSS 2.0 base score
18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

Microsoft Windows 2000 SP4 does not properly validate an RPC server during mutual authentication over SSL, which allows remote attackers to spoof an RPC server, aka the "RPC Mutual Authentication Vulnerability."

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

Affected products

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

References

LinkTags
http://secunia.com/advisories/20637 PatchVendor Advisory
http://securitytracker.com/id?1016289 Patch
http://www.osvdb.org/26438
http://www.securityfocus.com/bid/18389 Patch
http://www.vupen.com/english/advisories/2006/2328 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-031
https://exchange.xforce.ibmcloud.com/vulnerabilities/26836
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1763
http://secunia.com/advisories/20637 PatchVendor Advisory
http://securitytracker.com/id?1016289 Patch
http://www.osvdb.org/26438
http://www.securityfocus.com/bid/18389 Patch
http://www.vupen.com/english/advisories/2006/2328 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-031
https://exchange.xforce.ibmcloud.com/vulnerabilities/26836
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1763

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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-2006-2380), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.