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CVE-2026-105009 Details

Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105009	[email protected]	Vendor AdvisoryPatch

CWE-ID	CWE Name	Source
CWE-276	Incorrect Default Permissions	[email protected]

Product	Versions
microsoft windows server 2012	r2
CPE cpe:2.3:o:microsoft:windows_server_2012:-:::::::* cpe:2.3:o:microsoft:windows_server_2012:r2:::::::* Remediation No remediation found in references.
microsoft windows server 2016	< 10.0.14393.9612
CPE cpe:2.3:o:microsoft:windows_server_2016:::::::: Remediation No remediation found in references.
microsoft windows server 2019	< 10.0.17763.9376
CPE cpe:2.3:o:microsoft:windows_server_2019:::::::: Remediation No remediation found in references.
microsoft windows server 2022	< 10.0.20348.5761
CPE cpe:2.3:o:microsoft:windows_server_2022:::::::x64:* Remediation No remediation found in references.
microsoft windows server 2025	< 10.0.26100.33650
CPE cpe:2.3:o:microsoft:windows_server_2025:::::::x64:* Remediation No remediation found in references.

4 change records found show changes

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