CVE-2026-27912: Windows Kerberos Elevation of Privilege Vulnerability

Published Apr 14, 2026
·
Updated

Improper authorization in Windows Kerberos allows an authorized attacker to elevate privileges over an adjacent network.

Other sources

Windows Kerberos Elevation of Privilege Vulnerability

— Microsoft

Affected Software

23 affected componentsFixes available
Microsoft Windows Server 2012 R2
Patch available
Microsoft Windows Server 2012
Patch available
Microsoft Windows Server 2012 R2
Patch available
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.9060
Microsoft Windows Server 2019<10.0.17763.8644
Microsoft Windows Server 2022<10.0.20348.5020
Microsoft Windows Server 2022 23h2<10.0.25398.2274
Microsoft Windows Server 2025<10.0.26100.32690
Microsoft Windows Server 2012 R2<6.3.9600.23132
6.3.9600.23132
Microsoft Windows Server 2012<6.2.9200.26026
6.2.9200.26026
Microsoft Windows Server 2016<10.0.14393.9060
10.0.14393.9060
Microsoft Windows Server 2012<6.2.9200.26026
6.2.9200.26026
Microsoft Windows Server 2016<10.0.14393.9060
10.0.14393.9060
Microsoft Windows Server 2012 R2<6.3.9600.23132
6.3.9600.23132
Microsoft Windows Server 2022<10.0.20348.5020
10.0.20348.5020
Microsoft Windows Server 2025<10.0.26100.32690
10.0.26100.32690
Microsoft Windows Server 2025<10.0.26100.32690
10.0.26100.32690
Microsoft Windows Server 2022, 23H2 Edition<10.0.25398.2274
10.0.25398.2274
Microsoft Windows Server 2019<10.0.17763.8644
10.0.17763.8644
Microsoft Windows Server 2019<10.0.17763.8644
10.0.17763.8644
Microsoft Windows Server 2022<10.0.20348.5020
10.0.20348.5020

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.3.9600.23132Patch KB5082126
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.2.9200.26026Patch KB5082127
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.14393.9060Patch KB5082198
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.32690Patch KB5082063
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.20348.5020Patch KB5082142
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.25398.2274Patch KB5082060
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.17763.8644Patch KB5082123

Event History

Apr 14, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·04:58 PM
Data Sourced
via MITRE·04:58 PM
DescriptionSeverity
Data Sourced
via NVD·06:16 PM
DescriptionSeverityWeaknessAffected Software

Company

Resources

Contact

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