CVE-2006-2374
The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2,...
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 cause a denial of service (hang) by calling the MrxSmbCscIoctlCloseForCopyChunk with the file handle of the shadow device, which results in a deadlock, aka the "SMB Invalid Handle Vulnerability."
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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 cause a denial of service (hang) by calling the MrxSmbCscIoctlCloseForCopyChunk with the file handle of the shadow device, which results in a deadlock, aka the "SMB Invalid Handle Vulnerability."
- Record
CVE-2006-2374- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-667
- Updated
- 2026-11-02
CVE List No score
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 cause a denial of service (hang) by calling the MrxSmbCscIoctlCloseForCopyChunk with the file handle of the shadow device, which results in a deadlock, aka the "SMB Invalid Handle Vulnerability."
- Record
CVE-2006-2374- Updated
- 2026-11-02
EUVDEUVD-2006-2375 No score
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 cause a denial of service (hang) by calling the MrxSmbCscIoctlCloseForCopyChunk with the file handle of the shadow device, which results in a deadlock, aka the "SMB Invalid Handle Vulnerability."
- Record
EUVD-2006-2375- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3rmc-m2pw-8q44
The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2,...
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 cause a denial of service (hang) by calling the MrxSmbCscIoctlCloseForCopyChunk with the file handle of the shadow device, which results in a deadlock, aka the "SMB Invalid Handle Vulnerability."
- Record
GHSA-3rmc-m2pw-8q44- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-667
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Microsoft Windows XP/2000 - 'Mrxsmb.sys' Local Privilege Escalation (MS06-030) | 2006-06-14 |
| Exploit-DB | Microsoft SMB Driver - Local Denial of Service | 2006-06-13 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-2374 is a medium vulnerability (CVSS 5.5) in Microsoft Windows 2000, published June 13, 2006. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.75%, the 77th percentile. No source names a fixed version.
References
securitytracker.com/id?1016288
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1827
exchange.xforce.ibmcloud.com/vulnerabilities/26830
vupen.com/english/advisories/2006/2327
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idefense.com/intelligence/vulnerabilities/display.php?id=409
docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-030
secunia.com/advisories/20635
osvdb.org/26439
securityfocus.com/bid/18357
nvd.nist.gov/vuln/detail/CVE-2006-2374
github.com/advisories/GHSA-3rmc-m2pw-8q44