CVE-2026-50377: Windows Kernel Elevation of Privilege Vulnerability
Published Jul 14, 2026
·Updated
Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.
Other sources
Windows Kernel Elevation of Privilege Vulnerability
— Microsoft
Affected Software
36 affected componentsFixes available
Microsoft Windows 10 1607<10.0.14393.9339
Microsoft Windows 10 1607<10.0.14393.9339
Microsoft Windows 10 1809<10.0.17763.9020
Microsoft Windows 10 1809<10.0.17763.9020
Microsoft Windows 10 21h2<10.0.19044.7548
Microsoft Windows 10 22h2<10.0.19045.7548
Microsoft Windows 11 24h2<10.0.26100.8875
Microsoft Windows 11 25h2<10.0.26200.8875
Microsoft Windows 11 26h1<10.0.28000.2525
Microsoft Windows Server 2016<10.0.14393.9339
Microsoft Windows Server 2019<10.0.17763.9020
Microsoft Windows Server 2022<10.0.20348.5386
Microsoft Windows Server 2025<10.0.26100.33158
Microsoft Windows Server 2016<10.0.14393.9339
10.0.14393.9339
Microsoft Windows Server 2016<10.0.14393.9339
10.0.14393.9339
Microsoft Windows Server 2025<10.0.26100.33158
10.0.26100.33158
Microsoft Windows Server 2025<10.0.26100.33158
10.0.26100.33158
Microsoft Windows Server 2022<10.0.20348.5386
10.0.20348.5386
Microsoft Windows Server 2019<10.0.17763.9020
10.0.17763.9020
Microsoft Windows Server 2019<10.0.17763.9020
10.0.17763.9020
Microsoft Windows 11=26H1, >=10.0.28000<10.0.28000.2525
10.0.28000.2525
Microsoft Windows 11=24H2, >=10.0.26100<10.0.26100.8875
10.0.26100.8875
Microsoft Windows 11=24H2, >=10.0.26100<10.0.26100.8875
10.0.26100.8875
Microsoft Windows 10=1607, >=10.0.14393<10.0.14393.9339
10.0.14393.9339
Microsoft Windows 11=26H1, >=10.0.28000<10.0.28000.2525
10.0.28000.2525
Microsoft Windows 11=25H2, >=10.0.26200<10.0.26200.8875
10.0.26200.8875
Microsoft Windows 10=1607, >=10.0.14393<10.0.14393.9339
10.0.14393.9339
Microsoft Windows 11=25H2, >=10.0.26200<10.0.26200.8875
10.0.26200.8875
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7548
10.0.19045.7548
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7548
10.0.19045.7548
Microsoft Windows 10=22H2, >=10.0.19045<10.0.19045.7548
10.0.19045.7548
Microsoft Windows 10=1809, >=10.0.17763<10.0.17763.9020
10.0.17763.9020
Microsoft Windows 10=1809, >=10.0.17763<10.0.17763.9020
10.0.17763.9020
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7548
10.0.19044.7548
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7548
10.0.19044.7548
Microsoft Windows 10=21H2, >=10.0.19044<10.0.19044.7548
10.0.19044.7548
Remediation
Event History
Jul 14, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·05:06 PM
Data Sourced
via MITRE·05:06 PM
DescriptionSeverity
Data Sourced
via NVD·06:17 PM
RemedyDescriptionSeverityWeaknessAffected Software