CVE-2026-83657

EUVD-2026-99318
Weak authentication in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 11.83%
Windows Releases
Platform
Version
Windows 10
1809 (x64, x86)
KB5126651
Windows Server 2019
Server Core
KB5126651
Standard
KB5126651
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83657