CVE-2026-83657

VendormicrosoftProductwindows 10 1809, windows server 2019DiscoveredOct 13, 2026UpdatedOct 29, 2026

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

CVSS v3.1

5.5 MEDIUM

EPSS

0.28%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

CVSS v3.1 Detail

Attack VectorLOCAL

Attack ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

ScopeUNCHANGED

ConfidentialityNONE

IntegrityHIGH

AvailabilityNONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Connections

3 relationships

Timeline

disclosure → media coverage

Oct 13, 2026

Disclosure — published as a CVE record. · last revised by NVD Oct 29, 2026