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CVE-2026-83648

MediumCVSS 6.5/10Last modified Oct 29, 2026

Description

Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Windows 10 Version 21H2	>= 10.0.19044.0, < 10.0.19044.7807
Microsoft	Windows 10 Version 22H2	>= 10.0.19045.0, < 10.0.19045.7807
Microsoft	Windows 11 version 23H2	>= 10.0.22631.0, < 10.0.22631.7652
Microsoft	Windows 11 Version 23H2	>= 10.0.22631.0, < 10.0.22631.7652
Microsoft	Windows 11 Version 24H2	>= 10.0.26100.0, < 10.0.26100.9711
Microsoft	Windows 11 Version 25H2	>= 10.0.26200.0, < 10.0.26200.9711
Microsoft	Windows 11 version 26H1	>= 10.0.28000.0, < 10.0.28000.3231
Microsoft	Windows 11 Version 26H2	>= 10.0.26300.0, < 10.0.26300.9711
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.5761
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.33650
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.33650

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83648Vendor Advisory

Timeline

Published: Oct 13, 2026
Last modified: Oct 29, 2026
NVD status: Analyzed

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