CVE-2026-32149: Windows Hyper-V Remote Code Execution Vulnerability
Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.
Other sources
Windows Hyper-V Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5020Patch KB5082142 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.8644Patch KB5082123 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9060Patch KB5082198 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7184Patch KB5082200 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7184Patch KB5082200 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.32690Patch KB5082063 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.25398.2274Patch KB5082060 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.6936Patch KB5082052 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.8246Patch KB5083769 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.8246Patch KB5083769 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.1836Patch KB5083768
Event History
Frequently Asked Questions
What is the severity of CVE-2026-32149?
CVE-2026-32149 is a critical vulnerability due to improper input validation in Windows Hyper-V that allows remote code execution.
How do I fix CVE-2026-32149?
To fix CVE-2026-32149, apply the latest security patches available for your affected Microsoft Windows products.
Which products are affected by CVE-2026-32149?
CVE-2026-32149 affects various versions of Windows Server, Windows 10, and Windows 11.
Is there a workaround for CVE-2026-32149?
There are no recommended workarounds for CVE-2026-32149; updating to the latest security patches is advised.
How can I determine if my system is vulnerable to CVE-2026-32149?
You can determine if your system is vulnerable to CVE-2026-32149 by checking for the presence of specific security updates and patches.