CVE-2026-83657

Weak authentication in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83657	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_1809:::::::x86:*
	cpe:2.3:o:microsoft:windows_server_2019::::::::

History

29 Oct 2026, 18:23

Type	Values Removed	Values Added
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83657 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83657 - Vendor Advisory
CPE		cpe:2.3:o:microsoft:windows_10_1809:::::::x64:* cpe:2.3:o:microsoft:windows_10_1809:::::::x86:* cpe:2.3:o:microsoft:windows_server_2019::::::::
First Time		Microsoft windows Server 2019 Microsoft Microsoft windows 10 1809

13 Oct 2026, 19:20

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 19:20

Updated : 2026-10-29 18:23

NVD link : CVE-2026-83657

Mitre link : CVE-2026-83657

CVE.ORG link : CVE-2026-83657

JSON object : View

Products Affected

microsoft

windows_server_2019
windows_10_1809

CWE

CWE-1390

Weak Authentication

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