Back
CVE-2006-2374
The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 and earlier allows…
Medium5.5EPSS 1.7%
- Published
- Updated
- Reserved
- Assigned by
- microsoft
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 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."
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.7% · top 22% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (14)
- 1016288 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- oval:org.mitre.oval:def:1827 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:1841 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:2030 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- win-smb-dos(26830) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- ADV-2006-2327 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- oval:org.mitre.oval:def:1979 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20060613 Windows MRXSMB.SYS MrxSmbCscIoctlCloseForCopyChunk DoS (opens in a new tab)third-party-advisoryx_refsource_IDEFENSEx_transferred
- oval:org.mitre.oval:def:1850 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- MS06-030 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- oval:org.mitre.oval:def:2060 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20635 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 26439 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 18357 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2006-2374)Record last updated .