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CVE-2026-47288

HighCVSS 7.1/10Last modified Jul 23, 2026

Description

Integer overflow or wraparound in Windows Kerberos allows an authorized attacker to execute code over an adjacent network.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Windows Server 2012	>= 6.2.9200.0, < 6.2.9200.26132
Microsoft	Windows Server 2012 (Server Core installation)	>= 6.2.9200.0, < 6.2.9200.26132
Microsoft	Windows Server 2012 R2	>= 6.3.9600.0, < 6.3.9600.23228
Microsoft	Windows Server 2012 R2 (Server Core installation)	>= 6.3.9600.0, < 6.3.9600.23228
Microsoft	Windows Server 2016	>= 10.0.14393.0, < 10.0.14393.9234
Microsoft	Windows Server 2016 (Server Core installation)	>= 10.0.14393.0, < 10.0.14393.9234
Microsoft	Windows Server 2019	>= 10.0.17763.0, < 10.0.17763.8880
Microsoft	Windows Server 2019 (Server Core installation)	>= 10.0.17763.0, < 10.0.17763.8880
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.5256
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.32995
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.32995

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47288Vendor Advisory

Timeline

Published: Jun 9, 2026
Last modified: Jul 23, 2026
NVD status: Analyzed

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CVE-2026-47288: High severity, CVSS 7.1 | Vulnix