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 Jun 13, 2006
10.0
HIGHCVSS 2.0
EPSS 29.17%
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."
Affected products
No data.
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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.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (29 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 29.17% (0.29172) | 98.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 30.09% (0.30095) | 97.97th | v5 (v2026.06.15) |
| Jun 14, 2026 | 15.43% (0.15428) | 94.83th | v4 (v2025.03.14) |
| Jun 12, 2026 | 21.80% (0.21805) | 95.89th | v4 (v2025.03.14) |
| Jun 11, 2026 | 15.43% (0.15428) | 94.81th | v4 (v2025.03.14) |
| Jun 9, 2026 | 21.80% (0.21805) | 95.87th | v4 (v2025.03.14) |
| Jun 7, 2026 | 15.43% (0.15428) | 94.79th | v4 (v2025.03.14) |
| Mar 18, 2026 | 21.80% (0.21805) | 95.68th | v4 (v2025.03.14) |
| Mar 11, 2026 | 20.41% (0.20405) | 95.44th | v4 (v2025.03.14) |
| Dec 28, 2025 | 19.12% (0.19122) | 95.14th | v4 (v2025.03.14) |
| Dec 27, 2025 | 15.76% (0.15763) | 94.53th | v4 (v2025.03.14) |
| Dec 26, 2025 | 19.12% (0.19122) | 95.14th | v4 (v2025.03.14) |
| Oct 28, 2025 | 22.37% (0.22371) | 95.56th | v4 (v2025.03.14) |
| Oct 27, 2025 | 18.60% (0.18603) | 94.99th | v4 (v2025.03.14) |
| Oct 23, 2025 | 22.37% (0.22371) | 95.55th | v4 (v2025.03.14) |
| Oct 1, 2025 | 27.66% (0.27663) | 96.29th | v4 (v2025.03.14) |
| Mar 30, 2025 | 18.21% (0.18211) | 94.67th | v4 (v2025.03.14) |
| Mar 29, 2025 | 35.63% (0.35627) | 95.48th | v4 (v2025.03.14) |
| Mar 24, 2025 | 18.21% (0.18211) | 94.66th | v4 (v2025.03.14) |
| Mar 19, 2025 | 16.07% (0.16071) | 93.99th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.25% (0.13251) | 93.60th | v4 (v2025.03.14) |
| Dec 17, 2024 | 8.54% (0.08538) | 94.44th | v3 (v2023.03.01) |
| Dec 12, 2024 | 0.82% (0.00816) | 82.53th | v3 (v2023.03.01) |
| May 3, 2024 | 0.78% (0.00783) | 81.30th | v3 (v2023.03.01) |
| Apr 11, 2024 | 0.63% (0.00626) | 78.66th | v3 (v2023.03.01) |
| Dec 24, 2023 | 0.63% (0.00626) | 76.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.52% (0.00524) | 73.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 43.02% (0.43024) | 98.32th | v2 (v2022.01.01) |
| Feb 4, 2022 | 43.02% (0.43024) | 97.64th | v2 (v2022.01.01) |
References (14)
- http://secunia.com/advisories/20635 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://securitytracker.com/id?1016288 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.idefense.com/intelligence/vulnerabilities/display.php?id=408 third-party-advisoryx_refsource_IDEFENSEThird Party Advisory
- http://www.osvdb.org/26440 vdb-entryx_refsource_OSVDBBroken Link
- http://www.securityfocus.com/bid/18356 vdb-entryx_refsource_BIDPatchThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2006/2327 vdb-entryx_refsource_VUPENVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-030 vendor-advisoryx_refsource_MSPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26828 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1137 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1730 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1792 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1904 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1942 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2007 vdb-entrysignaturex_refsource_OVALThird Party Advisory
Change history (0)
No recorded changes yet.