CVE-2026-83657

Windows Modern Device Management (MDM) Tampering Vulnerability

Published Oct 13, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
Weak authentication in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
Type Values Removed Values Added
First Time appeared Microsoft windows Server 2019 (server Core Installation)
Vendors & Products Microsoft windows Server 2019 (server Core Installation)
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 8:36 PM
Reserved
Aug 31, 2026, 10:29 PM
Status
Analyzed
Published
Oct 13, 2026, 7:20 PM
Modified
Oct 29, 2026, 6:23 PM