A security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD). To exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it. The update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.
AI analysis not yet available
Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.
No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| microsoft | windows_server_2012 | - | - |
| microsoft | windows_server_2012 | - | - |
| microsoft | windows_server_2016 |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
11
Affected Products
6
References
microsoft / windows_server_2012
| - |
| - |
| microsoft | windows_server_2016 | - | - |
| microsoft | windows_server_2016 | - | - |
| microsoft | windows_server_2016 | - | - |
| microsoft | windows_server_2016 | - | - |
| microsoft | windows_server_2019 | - | - |
| samba | samba | 4.1.0 - 4.13.13 | - |
| samba | samba | 4.14.0 - 4.14.9 | - |
| samba | samba | 4.15.0 - 4.15.1 | - |
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Exploitability
Impact