CVE-2026-33826

published 2026-04-14

CVE-2026-33826: Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.

high 8 CVSS 3.1

AV A AC L PR L UI N S U C H I H A H

Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
microsoft	windows_server_2012_r2	>= 6.3.9600.0 < 6.3.9600.23132	6.3.9600.23132
microsoft	windows_server_2016	>= 10.0.14393.0 < 10.0.14393.9060	10.0.14393.9060
microsoft	windows_server_2019	>= 10.0.17763.0 < 10.0.17763.8644	10.0.17763.8644
microsoft	windows_server_2022	>= 10.0.20348.0 < 10.0.20348.5020	10.0.20348.5020
microsoft	windows_server_2025	>= 10.0.26100.0 < 10.0.26100.32690	10.0.26100.32690

CWE-20