CVE-2026-42972: Windows Hyper-V Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Hyper-V allows an authorized attacker to disclose information locally.
Other sources
Windows Hyper-V Information Disclosure 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 10.0.26200.8655Patch KB5094126 - Upgrade
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Fixed in 10.0.26100.32995Patch KB5094125 - Upgrade
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Fixed in 10.0.19045.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.19044.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.17763.8880Patch KB5094123 - Upgrade
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Fixed in 10.0.20348.5256Patch KB5094128 - Upgrade
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Fixed in 10.0.28000.2269Patch KB5095051 - Upgrade
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Fixed in 10.0.22631.7219Patch KB5093998 - Upgrade
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Fixed in 6.3.9600.23228Patch KB5094041 - Upgrade
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Fixed in 6.2.9200.26132Patch KB5094042 - Upgrade
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Fixed in 10.0.14393.9234Patch KB5094122 - Upgrade
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Fixed in 10.0.26100.8655Patch KB5094126
Event History
Frequently Asked Questions
What is the severity of CVE-2026-42972?
CVE-2026-42972 has a medium severity rating of 5.5.
What systems are affected by CVE-2026-42972?
CVE-2026-42972 affects Microsoft Windows 10, Windows 11, and various versions of Windows Server including 2012, 2016, 2019, 2022, and 2025.
What type of vulnerability is CVE-2026-42972?
CVE-2026-42972 is classified as an Information Disclosure vulnerability.
How can I mitigate CVE-2026-42972?
Mitigation for CVE-2026-42972 involves applying security updates and patches provided by Microsoft.
What is the risk associated with CVE-2026-42972?
CVE-2026-42972 poses a risk of unauthorized information exposure locally, which can lead to data compromise.