CVE-2026-83657 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Microsoft	Windows 10 1809 Windows Server 2019 Windows Server 2019 (server Core Installation)

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83657

History

Sun, 18 Oct 2026 07:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Microsoft windows Server 2019 (server Core Installation)
Vendors & Products		Microsoft windows Server 2019 (server Core Installation)

Tue, 13 Oct 2026 22:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 13 Oct 2026 19:15:00 +0000

Type	Values Removed	Values Added
Description		Weak authentication in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.
Title		Windows Modern Device Management (MDM) Tampering Vulnerability
First Time appeared		Microsoft Microsoft windows 10 1809 Microsoft windows Server 2019
Weaknesses		CWE-1390
CPEs		cpe:2.3:o:microsoft:windows_10_1809:::::::x86:* cpe:2.3:o:microsoft:windows_server_2019::::::::
Vendors & Products		Microsoft Microsoft windows 10 1809 Microsoft windows Server 2019
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83657
Metrics		cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-10-13T18:59:47.726Z

Updated: 2026-10-23T22:21:41.850Z

Reserved: 2026-08-31T22:29:28.071Z

Link: CVE-2026-83657

Vulnrichment

Updated: 2026-10-13T20:37:35.772Z

NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:20:07.380

Modified: 2026-10-13T21:18:32.270

Link: CVE-2026-83657

Redhat

No data.

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