CVE-2026-20849: Windows Kerberos Elevation of Privilege Vulnerability
Microsoft · Windows 10 Version 1607
Vendor fix available · Affected: Microsoft Windows 10 Version 1607 · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 63% of scored CVEs
DescriptionCVE.org
Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacker to elevate privileges over a network.
Affected products20
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Microsoft · Windows 10 Version 1607from 10.0.14393.0 before 10.0.14393.8783
- Microsoft · Windows 10 Version 1809from 10.0.17763.0 before 10.0.17763.8276
- Microsoft · Windows 10 Version 21H2from 10.0.19044.0 before 10.0.19044.6809
- Microsoft · Windows 10 Version 22H2from 10.0.19045.0 before 10.0.19045.6809
- Microsoft · Windows 11 version 23H2from 10.0.22631.0 before 10.0.22631.6491
- Microsoft · Windows 11 Version 23H2from 10.0.22631.0 before 10.0.22631.6491
- Microsoft · Windows 11 Version 24H2from 10.0.26100.0 before 10.0.26100.7623
- Microsoft · Windows 11 Version 25H2from 10.0.26200.0 before 10.0.26200.7623
- Microsoft · Windows Server 2008 R2 Service Pack 1from 6.1.7601.0 before 6.1.7601.28117
- Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)from 6.1.7601.0 before 6.1.7601.28117
- Microsoft · Windows Server 2008 Service Pack 2from 6.0.6003.0 before 6.0.6003.23717
- Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)from 6.0.6003.0 before 6.0.6003.23717
- Microsoft · Windows Server 2012from 6.2.9200.0 before 6.2.9200.25868
- Microsoft · Windows Server 2012 (Server Core installation)from 6.2.9200.0 before 6.2.9200.25868
- Microsoft · Windows Server 2012 R2from 6.3.9600.0 before 6.3.9600.22968
- Microsoft · Windows Server 2012 R2 (Server Core installation)from 6.3.9600.0 before 6.3.9600.22968
- Microsoft · Windows Server 2016from 10.0.14393.0 before 10.0.14393.8783
- Microsoft · Windows Server 2016 (Server Core installation)from 10.0.14393.0 before 10.0.14393.8783
- Microsoft · Windows Server 2019from 10.0.17763.0 before 10.0.17763.8276
- Microsoft · Windows Server 2019 (Server Core installation)from 10.0.17763.0 before 10.0.17763.8276
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Microsoft
- Published
- January 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-20849 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.