CVE-2006-2373
The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 and earlier allows…
- 10.0HighCVSS base score
- 29.2%Exploitation in 30 daysEPSS · top 1.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 2Public exploitsMetasploit, Nuclei and Exploit-DB
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."
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list 2 Exploit-DB entries for it.
Show the exploits2
Exploit-DB2 entries
- Microsoft Windows - NtClose DeadLock (MS06-030) (Exploit-DB entry) (opens in a new tab)
EDB-ID 1910local, windowspublished 14 Jun 2006Verified
- Microsoft Windows XP/2000 - 'Mrxsmb.sys' Local Privilege Escalation (MS06-030) (Exploit-DB entry) (opens in a new tab)
EDB-ID 1911local, windowspublished 14 Jun 2006Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By microsoft
- 29 days later
· 29 days later
Published
- 18 years later
· 18 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 29.2% · top 1.8% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
References14
- 1016288 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- oval:org.mitre.oval:def:1942 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20060613 Windows MRXSMB.SYS MRxSmbCscIoctlOpenForCopyChunk Overflow (opens in a new tab)third-party-advisoryx_refsource_IDEFENSEx_transferred
- oval:org.mitre.oval:def:1730 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- ADV-2006-2327 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- oval:org.mitre.oval:def:1137 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 26440 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 18356 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- MS06-030 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- oval:org.mitre.oval:def:2007 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:1792 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:1904 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20635 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- win-smb-privilege-escalation(26828) (opens in a new tab)vdb-entryx_refsource_XFx_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)
- EUVD EUVD-2006-2374 (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://cveledger.app/cve/CVE-2006-2373)Record last updated .