CVE-2026-83657
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Weak Authentication in Windows Modern Device Management Allows Local Tampering

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

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

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-14
EPSS Evaluated
N/A
NVD
CVE-2026-83657
EUVD
EUVD-2026-99318

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
Microsoft Windows 10 Version 1809 10.0.17763.0
Microsoft Windows Server 2019 10.0.17763.0
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-1390 The product uses an authentication mechanism to restrict access to specific users or identities, but the mechanism does not sufficiently prove that the claimed identity is correct.

Attack-Flow Graph

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