HIGHCVE-2026-35420Published Modified CNA microsoft
CVE-2026-35420: Windows Kernel Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
Metrics
- CVSS v3.1
- 7.8
- Severity
- HIGH
- Fixed in
- 6.2.9200.26079
- Affected Products
- 12
Fix available
6.2.9200.260796.3.9600.2318110.0.14393.914010.0.17763.875510.0.20348.513910.0.25398.233010.0.26100.32860
Patch commits
Affected packages
- Microsoft / Windows Server 2012< 6.2.9200.26079 (from 6.2.9200.0)
- Microsoft / Windows Server 2012 (Server Core installation)< 6.2.9200.26079 (from 6.2.9200.0)
- Microsoft / Windows Server 2012 R2< 6.3.9600.23181 (from 6.3.9600.0)
- Microsoft / Windows Server 2012 R2 (Server Core installation)< 6.3.9600.23181 (from 6.3.9600.0)
- Microsoft / Windows Server 2016< 10.0.14393.9140 (from 10.0.14393.0)
- Microsoft / Windows Server 2016 (Server Core installation)< 10.0.14393.9140 (from 10.0.14393.0)
- Microsoft / Windows Server 2019< 10.0.17763.8755 (from 10.0.17763.0)
- Microsoft / Windows Server 2019 (Server Core installation)< 10.0.17763.8755 (from 10.0.17763.0)
- Microsoft / Windows Server 2022< 10.0.20348.5139 (from 10.0.20348.0)
- Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)< 10.0.25398.2330 (from 10.0.25398.0)
- Microsoft / Windows Server 2025< 10.0.26100.32860 (from 10.0.26100.0)
- Microsoft / Windows Server 2025 (Server Core installation)< 10.0.26100.32860 (from 10.0.26100.0)
CVSS Vector
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