CVE-2026-83863: Windows 10 Version 1607 10.0.14393.0 to before 10.0.14393.9612; +19 more affected products

Affected technology

Windows 10 Version 1607 · 10.0.14393.0 to before 10.0.14393.9612
Microsoft

Windows 10 Version 1809 · 10.0.17763.0 to before 10.0.17763.9376
Microsoft

Windows 10 Version 21H2 · 10.0.19044.0 to before 10.0.19044.7807
Microsoft

Windows 10 Version 22H2 · 10.0.19045.0 to before 10.0.19044.7807
Microsoft

Windows 11 version 23H2 · 10.0.22631.0 to before 10.0.22631.7652
Microsoft

Windows 11 Version 24H2 · 10.0.26100.0 to before 10.0.26100.9711
Microsoft

Windows 11 Version 25H2 · 10.0.26200.0 to before 10.0.26200.9711
Microsoft

Windows 11 version 26H1 · 10.0.28000.0 to before 10.0.28000.3231
Microsoft

Windows 11 Version 26H2 · 10.0.26300.0 to before 10.0.26300.9711
Microsoft

Windows Server 2012 · 6.2.9200.0 to before 6.2.9200.26434
Microsoft

Windows Server 2012 (Server Core installation) · 6.2.9200.0 to before 6.2.9200.26434
Microsoft

Windows Server 2012 R2 · 6.3.9600.0 to before 6.3.9600.23470
Microsoft

Windows Server 2012 R2 (Server Core installation) · 6.3.9600.0 to before 6.3.9600.23470
Microsoft

Windows Server 2016 · 10.0.14393.0 to before 10.0.14393.9612
Microsoft

Windows Server 2016 (Server Core installation) · 10.0.14393.0 to before 10.0.14393.9612
Microsoft

Windows Server 2019 · 10.0.17763.0 to before 10.0.17763.9376
Microsoft

Windows Server 2019 (Server Core installation) · 10.0.17763.0 to before 10.0.17763.9376
Microsoft

Windows Server 2022 · 10.0.20348.0 to before 10.0.20348.5761
Microsoft

Windows Server 2025 · 10.0.26100.0 to before 10.0.26100.33650
Microsoft

Windows Server 2025 (Server Core installation) · 10.0.26100.0 to before 10.0.26100.33650
Microsoft

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

An authorized attacker can elevate privileges locally. Vendor/CNA’s CVSS 3.1 assessment (base score 7.8/10) rates confidentiality, integrity and availability impact as high.