CVE-2026-33827

published 2026-04-14

CVE-2026-33827: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code…

high 8.1 CVSS 3.1

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

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

Affected

15 ranges

Vendor	Product	Version range	Fixed in
microsoft	windows_10_version_1607	>= 10.0.14393.0 < 10.0.14393.9060	10.0.14393.9060
microsoft	windows_10_version_1809	>= 10.0.17763.0 < 10.0.17763.8644	10.0.17763.8644
microsoft	windows_10_version_21h2	>= 10.0.19044.0 < 10.0.19044.7184	10.0.19044.7184
microsoft	windows_10_version_22h2	>= 10.0.19045.0 < 10.0.19045.7184	10.0.19045.7184
microsoft	windows_11_version_22h3	>= 10.0.22631.0 < 10.0.22631.6936	10.0.22631.6936
microsoft	windows_11_version_23h2	>= 10.0.22631.0 < 10.0.22631.6936	10.0.22631.6936
microsoft	windows_11_version_24h2	>= 10.0.26100.0 < 10.0.26100.8246	10.0.26100.8246
microsoft	windows_11_version_25h2	>= 10.0.26200.0 < 10.0.26200.8246	10.0.26200.8246
microsoft	windows_11_version_26h1	>= 10.0.28000.0 < 10.0.28000.1836	10.0.28000.1836
microsoft	windows_server_2012	>= 6.2.9200.0 < 6.2.9200.26026	6.2.9200.26026
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-362