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

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Windows Server 2012 Subscribe
Windows Server 2012 (server Core Installation) Subscribe
Windows Server 2012 R2 Subscribe
Windows Server 2012 R2 Subscribe
Windows Server 2012 R2 (server Core Installation) Subscribe
Windows Server 2016 Subscribe
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Windows Server 2022 Subscribe
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Windows Server 2025 (server Core Installation) Subscribe
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Fixes

Solution

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Workaround

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History

Wed, 14 Oct 2026 01:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft windows Server 2012 (server Core Installation)
Microsoft windows Server 2012 R2
Microsoft windows Server 2012 R2 (server Core Installation)
Microsoft windows Server 2016 (server Core Installation)
Microsoft windows Server 2019 (server Core Installation)
Microsoft windows Server 2025 (server Core Installation)
Vendors & Products Microsoft windows Server 2012 (server Core Installation)
Microsoft windows Server 2012 R2
Microsoft windows Server 2012 R2 (server Core Installation)
Microsoft windows Server 2016 (server Core Installation)
Microsoft windows Server 2019 (server Core Installation)
Microsoft windows Server 2025 (server Core Installation)

Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
Title Windows Server Update Service Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows Server 2012
Microsoft windows Server 2012 R2
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
Weaknesses CWE-276
CPEs cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows Server 2012
Microsoft windows Server 2012 R2
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T22:25:42.138Z

Reserved: 2026-10-02T20:51:38.831Z

Link: CVE-2026-105009

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:17:57.277

Modified: 2026-10-13T22:17:27.317

Link: CVE-2026-105009

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-14T01:00:11Z

Weaknesses