Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an elevation of privilege vulnerability due to Kerberos falling back to NT LAN Manager (NTLM) Authentication Protocol as the default authentication protocol, aka "Windows Elevation of Privilege Vulnerability"
Published Jul 11, 2017
8.1
HIGHCVSS 3.0
EPSS 7.18%
Description
Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an elevation of privilege vulnerability due to Kerberos falling back to NT LAN Manager (NTLM) Authentication Protocol as the default authentication protocol, aka "Windows Elevation of Privilege Vulnerability".
Affected products
-
- Version Microsoft WindowsStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microsoft Corporation | n/a | n/a |
|
- n/a
- 1511
- 1607
- 1703
- n/a
- n/a
- n/a
- n/a
- r2
- n/a
- r2
- n/a
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.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:H/Au:N/C:P/I:P/A:P
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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (26 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.18% (0.07176) | 94.11th | v5 (v2026.06.15) |
| Sep 22, 2026 | 7.18% (0.07176) | 94.01th | v5 (v2026.06.15) |
| Sep 21, 2026 | 5.90% (0.05903) | 92.95th | v5 (v2026.06.15) |
| Sep 6, 2026 | 7.18% (0.07176) | 93.87th | v5 (v2026.06.15) |
| Sep 5, 2026 | 5.90% (0.05903) | 92.80th | v5 (v2026.06.15) |
| Aug 30, 2026 | 7.18% (0.07176) | 93.84th | v5 (v2026.06.15) |
| Aug 28, 2026 | 5.90% (0.05903) | 92.76th | v5 (v2026.06.15) |
| Aug 24, 2026 | 7.18% (0.07176) | 93.80th | v5 (v2026.06.15) |
| Aug 23, 2026 | 5.90% (0.05903) | 92.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.04% (0.07041) | 93.34th | v5 (v2026.06.15) |
| Feb 19, 2026 | 17.92% (0.17921) | 94.99th | v4 (v2025.03.14) |
| Feb 18, 2026 | 19.15% (0.19153) | 95.20th | v4 (v2025.03.14) |
| Nov 21, 2025 | 17.92% (0.17921) | 94.88th | v4 (v2025.03.14) |
| Nov 18, 2025 | 15.04% (0.15044) | 93.96th | v4 (v2025.03.14) |
| May 11, 2025 | 17.92% (0.17921) | 94.76th | v4 (v2025.03.14) |
| Apr 2, 2025 | 16.61% (0.16607) | 94.36th | v4 (v2025.03.14) |
| Mar 30, 2025 | 12.93% (0.12935) | 93.44th | v4 (v2025.03.14) |
| Mar 29, 2025 | 18.38% (0.18378) | 92.14th | v4 (v2025.03.14) |
| Mar 17, 2025 | 12.93% (0.12935) | 93.50th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00236) | 62.61th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.24% (0.00236) | 61.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00236) | 59.87th | v3 (v2023.03.01) |
| Mar 6, 2023 | 9.35% (0.09347) | 94.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.35% (0.09347) | 87.11th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.70% (0.06701) | 83.28th | v5 (v2026.06.15) |
| Apr 14, 2021 | 6.70% (0.06701) | 0.00th | v1 |
References (2)
- http://www.securityfocus.com/bid/99402 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8563 x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/99402 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8563 | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.