The User Profile Service (aka ProfSvc) in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges by conducting a junction attack to load another user's UsrClass.dat registry hive, aka MSRC ID 20674 or "Microsoft User Profile Service Elevation of Privilege Vulnerability."
Published Jan 13, 2015
7.2
HIGHCVSS 2.0
EPSS 3.57%
Description
The User Profile Service (aka ProfSvc) in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges by conducting a junction attack to load another user's UsrClass.dat registry hive, aka MSRC ID 20674 or "Microsoft User Profile Service Elevation of Privilege Vulnerability."
Affected products
No data.
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- r2
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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:L/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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.57% (0.03574) | 89.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.55% (0.03545) | 87.75th | v5 (v2026.06.15) |
| Dec 28, 2025 | 24.06% (0.24057) | 95.85th | v4 (v2025.03.14) |
| Dec 27, 2025 | 20.94% (0.20937) | 95.47th | v4 (v2025.03.14) |
| Oct 28, 2025 | 24.06% (0.24057) | 95.79th | v4 (v2025.03.14) |
| Oct 27, 2025 | 20.94% (0.20937) | 95.39th | v4 (v2025.03.14) |
| Oct 1, 2025 | 24.06% (0.24057) | 95.87th | v4 (v2025.03.14) |
| Mar 30, 2025 | 20.44% (0.20437) | 95.07th | v4 (v2025.03.14) |
| Mar 29, 2025 | 14.71% (0.14708) | 90.85th | v4 (v2025.03.14) |
| Mar 19, 2025 | 20.44% (0.20437) | 94.85th | v4 (v2025.03.14) |
| Mar 17, 2025 | 22.55% (0.22551) | 95.39th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00043) | 11.61th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.04% (0.00043) | 9.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.96% (0.01961) | 78.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.96% (0.01961) | 76.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.96% (0.01961) | 55.74th | v2 (v2022.01.01) |
References (6)
- http://secunia.com/advisories/61927 third-party-advisoryx_refsource_SECUNIA
- http://www.securityfocus.com/bid/71967 vdb-entryx_refsource_BID
- https://code.google.com/p/google-security-research/issues/detail?id=123 x_refsource_MISCExploit
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-003 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/99519 vdb-entryx_refsource_XF
- https://exchange.xforce.ibmcloud.com/vulnerabilities/99520 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/61927 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.securityfocus.com/bid/71967 | vdb-entryx_refsource_BID | |
| https://code.google.com/p/google-security-research/issues/detail?id=123 | x_refsource_MISCExploit | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-003 | vendor-advisoryx_refsource_MS | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/99519 | vdb-entryx_refsource_XF | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/99520 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.