CVE-2026-83656 | BDVDB-2026-387174 Detail

MicrosoftWindows 10 Version 21H2

Description#

Missing authentication for critical function in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.

Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact none. Attack vector: local.

No public exploit known

4.7 Medium

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 18.0.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Authentication Issues

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

4.7 Medium

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

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).