CVE-2026-35420

high Microsoft
CVSS v3 Base Score
7.8
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 Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: May 12, 2026 (1 days ago)
Last Modified: May 13, 2026
Vendor: Microsoft
Source: MITRE

Description

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

CWE

CWE-122

Affected Products

Microsoft Windows Server 2012Microsoft Windows Server 2012 (Server Core installation)Microsoft Windows Server 2012 R2Microsoft Windows Server 2012 R2 (Server Core installation)Microsoft Windows Server 2016Microsoft Windows Server 2016 (Server Core installation)Microsoft Windows Server 2019Microsoft Windows Server 2019 (Server Core installation)Microsoft Windows Server 2022Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

References

🔗 msrc.microsoft.com