Kerberos in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607 allows man-in-the-middle attackers to bypass authentication via vectors related to a fallback to NTLM authentication during a domain account password change, aka "Kerberos Security Feature Bypass Vulnerability."
Published Aug 9, 2016
7.5
HIGHCVSS 3.0
EPSS 17.18%
Description
Kerberos in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607 allows man-in-the-middle attackers to bypass authentication via vectors related to a fallback to NTLM authentication during a domain account password change, aka "Kerberos Security Feature Bypass Vulnerability."
Affected products
No data.
- n/a
- 1511
- n/a
- n/a
- n/a
- n/a
- n/a
- r2
- 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:L/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:M/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
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 | 17.18% (0.17181) | 97.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 17.18% (0.17181) | 96.69th | v5 (v2026.06.15) |
| Oct 31, 2025 | 24.93% (0.24935) | 95.91th | v4 (v2025.03.14) |
| Sep 14, 2025 | 13.12% (0.13119) | 93.88th | v4 (v2025.03.14) |
| Mar 30, 2025 | 21.45% (0.21452) | 95.22th | v4 (v2025.03.14) |
| Mar 29, 2025 | 36.13% (0.36135) | 95.55th | v4 (v2025.03.14) |
| Mar 17, 2025 | 21.45% (0.21452) | 95.23th | v4 (v2025.03.14) |
| Dec 17, 2024 | 10.82% (0.10820) | 95.07th | v3 (v2023.03.01) |
| Jun 1, 2024 | 9.47% (0.09472) | 94.73th | v3 (v2023.03.01) |
| Feb 22, 2024 | 10.75% (0.10749) | 94.90th | v3 (v2023.03.01) |
| Aug 22, 2023 | 12.39% (0.12391) | 94.69th | v3 (v2023.03.01) |
| Apr 22, 2023 | 8.60% (0.08603) | 93.49th | v3 (v2023.03.01) |
| Mar 13, 2023 | 11.16% (0.11161) | 94.22th | v3 (v2023.03.01) |
| Mar 7, 2023 | 13.75% (0.13754) | 94.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 20.76% (0.20764) | 96.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 20.76% (0.20764) | 96.20th | v2 (v2022.01.01) |
| Feb 4, 2022 | 20.76% (0.20764) | 94.08th | v2 (v2022.01.01) |
References (4)
- http://www.securityfocus.com/bid/92290 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1036576 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-101 vendor-advisoryx_refsource_MSPatchVendor Advisory
- https://www.exploit-db.com/exploits/40409/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/92290 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1036576 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-101 | vendor-advisoryx_refsource_MSPatchVendor Advisory | |
| https://www.exploit-db.com/exploits/40409/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.