CVE-2026-35420

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

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35420	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016::::::::
	cpe:2.3:o:microsoft:windows_server_2019::::::::
	cpe:2.3:o:microsoft:windows_server_2022::::::::
	cpe:2.3:o:microsoft:windows_server_2022_23h2::::::::
	cpe:2.3:o:microsoft:windows_server_2025::::::::

History

No history.

Information

Published : 2026-05-12 18:17

Updated : 2026-06-17 10:40

NVD link : CVE-2026-35420

Mitre link : CVE-2026-35420

CVE.ORG link : CVE-2026-35420

JSON object : View

Products Affected

microsoft

windows_server_2022_23h2
windows_server_2019
windows_server_2012
windows_server_2016
windows_server_2022
windows_server_2025

CWE

CWE-122

Heap-based Buffer Overflow

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