CVE-2026-83499
Windows Server Update Service Elevation of Privilege Vulnerability
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
Insufficient granularity of access control in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
| Vendor | microsoft |
| Product | windows 10 version 1607 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Oct 13, 2026 |
| Last Updated | Oct 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Windows 10 Version 1607
10.0.14393.0 < 10.0.14393.9612
Microsoft / Windows 10 Version 1809
10.0.17763.0 < 10.0.17763.9376
Microsoft / Windows Server 2012
6.2.9200.0 < 6.2.9200.26434
Microsoft / Windows Server 2012 (Server Core installation)
6.2.9200.0 < 6.2.9200.26434
Microsoft / Windows Server 2012 R2
6.3.9600.0 < 6.3.9600.23470
Microsoft / Windows Server 2012 R2 (Server Core installation)
6.3.9600.0 < 6.3.9600.23470
Microsoft / Windows Server 2016
10.0.14393.0 < 10.0.14393.9612
Microsoft / Windows Server 2016 (Server Core installation)
10.0.14393.0 < 10.0.14393.9612
Microsoft / Windows Server 2019
10.0.17763.0 < 10.0.17763.9376
Microsoft / Windows Server 2019 (Server Core installation)
10.0.17763.0 < 10.0.17763.9376
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