CVE-2006-2373

Exp

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."

Published: 2006-06-13 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-2373 is rated High Exploit Risk (90.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 30.09%, 98th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2006-2373

EDB-ID Source Kind Published Link
1911 exploit_db edb 2006-06-14 Exploit-DB ↗
1910 exploit_db edb 2006-06-14 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-2373

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-20 29.17% 30.09% +0.92%
2 2026-06-19 30.09% 29.17% -0.92%
3 2026-06-15 — 30.09% —

Full EPSS history (28 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-2373

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2006-2373

Affected software / configurations for CVE-2006-2373

Vendor Product Version Raw CPE
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:-:-:*:*:*:*:*:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:-:sp1:*:*:*:*:itanium:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:-:sp1:*:*:*:*:x86:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:-:*:*:professional:*:x64:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp1:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*

References for CVE-2006-2373

URL Tags
http://secunia.com/advisories/20635 Third Party Advisory
http://securitytracker.com/id?1016288 Third Party Advisory VDB 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 Patch Third Party Advisory VDB Entry
http://www.vupen.com/english/advisories/2006/2327 Vendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-030 Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/26828 Third Party Advisory VDB 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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