CVE-2026-35420

HIGH

Microsoft Windows Server 2012 - Windows Kernel Elevation of Privilege Vulnerability

Title source: rule
STIX 2.1

Description

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Windows Kernel Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35420

Scores

CVSS v3 7.8
EPSS 0.0005
EPSS Percentile 15.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-122
Status published
Products (19)
Microsoft/Windows Server 2012 6.2.9200.0 - 6.2.9200.26079
Microsoft/Windows Server 2012 (Server Core installation) 6.2.9200.0 - 6.2.9200.26079
Microsoft/Windows Server 2012 R2 6.3.9600.0 - 6.3.9600.23181
Microsoft/Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 - 6.3.9600.23181
Microsoft/Windows Server 2016 10.0.14393.0 - 10.0.14393.9140
Microsoft/Windows Server 2016 (Server Core installation) 10.0.14393.0 - 10.0.14393.9140
Microsoft/Windows Server 2019 10.0.17763.0 - 10.0.17763.8755
Microsoft/Windows Server 2019 (Server Core installation) 10.0.17763.0 - 10.0.17763.8755
Microsoft/Windows Server 2022 10.0.20348.0 - 10.0.20348.5139
Microsoft/Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 - 10.0.25398.2330
... and 9 more
Published May 12, 2026
Tracked Since May 12, 2026