CVE-2026-83666: microsoft windows_10_1607, microsoft windows_10_1809, microsoft windows_server_2012

CVSS 7.0 (high) · published 2026-10-13

Concurrent execution using shared resource with improper synchronization ('race condition') in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.

Affected products (NVD): microsoft windows_10_1607, microsoft windows_10_1809, microsoft windows_server_2012, microsoft windows_server_2016, microsoft windows_server_2019, microsoft windows_server_2022, microsoft windows_server_2025

Fixed in (NVD): 10.0.14393.9612, 10.0.17763.9376, 10.0.20348.5761, 10.0.26100.33650

Weakness: CWE-362

Source: NVD CVE-2026-83666

References

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