CVE-2026-83657: microsoft windows_10_1809, microsoft windows_server_2019

CVSS 5.5 (medium) · published 2026-10-13

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

Affected products (NVD): microsoft windows_10_1809, microsoft windows_server_2019

Fixed in (NVD): 10.0.17763.9376

Weakness: CWE-1390

Source: NVD CVE-2026-83657

References

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

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