🛡️ CVE-2026-27921
🟠 CVSS 7.0 — High ✅ No Known Exploit CWE-362 NVD
7.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

Details

Severity HIGH
CVSS Score 7.0
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-362
Public Exploit ✅ No
Source NVD
Published 2026-04-14
Updated 2026-06-02
Modified 2026-04-22
Fix URL N/A

Affected Packages

Software From version Fixed in
windows-10-1607 10.0.14393.9060
windows-10-1809 10.0.17763.8644
windows-10-21h2 10.0.19044.7184
windows-10-22h2 10.0.19045.7184
windows-11-23h2 10.0.22631.6936
windows-11-24h2 10.0.26100.8246
windows-11-25h2 10.0.26200.8246
windows-11-26h1 10.0.28000.1836
windows-server-2012
windows-server-2016 10.0.14393.9060
windows-server-2019 10.0.17763.8644
windows-server-2022 10.0.20348.5020
windows-server-2022-23h2 10.0.25398.2274
windows-server-2025 10.0.26100.32690

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