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7.1 High

CVE-2026-50354 Windows Kernel Elevation of Privilege Vulnerability

Description

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVSS 3.1 detail

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

Exploitable with local access to the machine, with an ordinary account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Local
Attack complexity
Low
Privileges required
Low
Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

Affected products and versions

Product Affected versions Fixed in
Windows 10 Version 1607 10.0 10.0.14393.0 → < 10.0.14393.9339 10.0.14393.9339
Windows 10 Version 1809 10.0 10.0.17763.0 → < 10.0.17763.9020 10.0.17763.9020
Windows 10 Version 21H2 10.0 10.0.19044.0 → < 10.0.19044.7548 10.0.19044.7548
Windows 10 Version 22H2 10.0 10.0.19045.0 → < 10.0.19045.7548 10.0.19045.7548
Windows 11 Version 24H2 10.0 10.0.26100.0 → < 10.0.26100.8875 10.0.26100.8875
Windows 11 Version 25H2 10.0 10.0.26200.0 → < 10.0.26200.8875 10.0.26200.8875
Windows 11 version 26H1 10.0 10.0.28000.0 → < 10.0.28000.2525 10.0.28000.2525
Windows Server 2016 10.0 10.0.14393.0 → < 10.0.14393.9339 10.0.14393.9339
Windows Server 2016 (Server Core installation) 10.0 10.0.14393.0 → < 10.0.14393.9339 10.0.14393.9339
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Product Affected versions Fixed in
Windows Server 2019 10.0 10.0.17763.0 → < 10.0.17763.9020 10.0.17763.9020
Windows Server 2019 (Server Core installation) 10.0 10.0.17763.0 → < 10.0.17763.9020 10.0.17763.9020
Windows Server 2022 10.0 10.0.20348.0 → < 10.0.20348.5386 10.0.20348.5386
Windows Server 2025 10.0 10.0.26100.0 → < 10.0.26100.33158 10.0.26100.33158
Windows Server 2025 (Server Core installation) 10.0 10.0.26100.0 → < 10.0.26100.33158 10.0.26100.33158

Other CVEs of Windows 10 Version 1607

The 4535 CVEs of Windows 10 Version 1607 →
CVE-2026-108136 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally 7.8 High CVE-2026-108131 No cwe for this issue in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform… 7.5 High CVE-2026-108132 Double free in Windows Kerberos allows an authorized attacker to elevate privileges locally 7.0 High CVE-2026-108129 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network 6.5 Medium
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