CVE-2026-69910: Windows Hyper-V Remote Code Execution Vulnerability
Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code over a network.
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 10.0.14393.9512Patch KB5123099 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7725Patch KB5122878 - Upgrade
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Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
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Fixed in 10.0.26200.9445Patch KB5124008 - Upgrade
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Fixed in 10.0.26100.9445Patch KB5124008 - Upgrade
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Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.2954Patch KB5124012 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7725Patch KB5122878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9245Patch KB5122876
Event History
Frequently Asked Questions
Which systems should be prioritized for triage?
Systems running Windows Hyper-V on the listed Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022, or Windows Server 2025 platforms should be prioritized, particularly where Hyper-V is reachable over a network.
Does exploitation require authentication or user interaction?
No. The vulnerability is rated with network attack vector, low attack complexity, no privileges required, and no user interaction, indicating an unauthorized attacker can attempt exploitation remotely.
What is the potential impact of a successful exploit?
Successful exploitation can allow code execution and is rated as having high confidentiality, integrity, and availability impact.