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Vulnerability record · CVE-2006-2373 · published 13 June 2006

CVE-2006-2373: Microsoft windows 2000 permissions and access controls vulnerability

Microsoft · Windows 2000

The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 and earlier allows local users to execute arbitrary code by calling the MrxSmbCscIoctlOpenForCopyChunk function with the METHOD_NEITHER method flag and an arbitrary address, possibly for kernel memory, aka the "SMB Driver Elevation of Privilege Vulnerability."

10.0 CVSS 2.0 High EPSS 29% · top 1.9% CWE-264 · Permissions and access controls
10.0CVSS 2.0 base score
29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
28References
16 Jun 2026Last modified by NVD

Description

The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 and earlier allows local users to execute arbitrary code by calling the MrxSmbCscIoctlOpenForCopyChunk function with the METHOD_NEITHER method flag and an arbitrary address, possibly for kernel memory, aka the "SMB Driver Elevation of Privilege Vulnerability."

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

Affected products

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

References

LinkTags
http://secunia.com/advisories/20635 Third Party Advisory
http://securitytracker.com/id?1016288 Third Party AdvisoryVDB Entry
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=408 Third Party Advisory
http://www.osvdb.org/26440 Broken Link
http://www.securityfocus.com/bid/18356 PatchThird Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2006/2327 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-030 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/26828 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1137 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1730 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1792 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1904 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1942 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2007 Third Party Advisory
http://secunia.com/advisories/20635 Third Party Advisory
http://securitytracker.com/id?1016288 Third Party AdvisoryVDB Entry
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=408 Third Party Advisory
http://www.osvdb.org/26440 Broken Link
http://www.securityfocus.com/bid/18356 PatchThird Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2006/2327 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-030 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/26828 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1137 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1730 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1792 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1904 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1942 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2007 Third Party Advisory

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

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Source: NIST National Vulnerability Database (record CVE-2006-2373), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.