MEDIUM
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."
Published Jun 13, 2006
5.5
MEDIUMCVSS 3.1
EPSS 1.75%
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."
Affected products
No data.
OR
- n/a
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No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
5.5 MEDIUM NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
2.1 LOW NVD
AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.75% 0.01748
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.01748
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.75% (0.01748) | 77.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.75% (0.01748) | 74.83th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.28% (0.00282) | 49.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00071) | 32.79th | v3 (v2023.03.01) |
| May 3, 2024 | 0.07% (0.00066) | 28.41th | v3 (v2023.03.01) |
| Feb 16, 2024 | 0.07% (0.00072) | 29.18th | v3 (v2023.03.01) |
| Dec 24, 2023 | 0.06% (0.00056) | 21.29th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00047) | 14.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.37% (0.02369) | 81.47th | v2 (v2022.01.01) |
| Dec 30, 2022 | 2.37% (0.02369) | 80.84th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.22% (0.02220) | 79.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.22% (0.02220) | 58.07th | v2 (v2022.01.01) |
Weaknesses (1)
References (14)
- http://secunia.com/advisories/20635 third-party-advisoryx_refsource_SECUNIABroken LinkThird Party Advisory
- http://securitytracker.com/id?1016288 vdb-entryx_refsource_SECTRACKBroken LinkThird Party AdvisoryVDB Entry
- http://www.idefense.com/intelligence/vulnerabilities/display.php?id=409 third-party-advisoryx_refsource_IDEFENSENot Applicable
- http://www.osvdb.org/26439 vdb-entryx_refsource_OSVDBBroken Link
- http://www.securityfocus.com/bid/18357 vdb-entryx_refsource_BIDBroken LinkExploitPatchThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2006/2327 vdb-entryx_refsource_VUPENBroken LinkVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-030 vendor-advisoryx_refsource_MSPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26830 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1827 vdb-entrysignaturex_refsource_OVALBroken LinkThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1841 vdb-entrysignaturex_refsource_OVALBroken LinkThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1850 vdb-entrysignaturex_refsource_OVALBroken LinkThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1979 vdb-entrysignaturex_refsource_OVALBroken LinkThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2030 vdb-entrysignaturex_refsource_OVALBroken LinkThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2060 vdb-entrysignaturex_refsource_OVALBroken LinkThird Party Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Jun 13, 2006
Updated Aug 7, 2024
Reserved May 15, 2006
Link CVE-2006-2374
CISA Vulnrichment
Updated n/a