CVE-2026-69910 Windows Hyper-V Remote Code Execution Vulnerability

Critical 9.8 Published Updated

An unauthorized attacker can execute arbitrary code over the network via a stack-based buffer overflow in Windows Hyper-V.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-69910?

CVE-2026-69910 is a critical memory corruption vulnerability in Microsoft Windows 10 1607, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code over a network.

Weakness: CWE-121

Which versions are affected by CVE-2026-69910?

It affects 12 products.

Products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2 and 6 more.

How do I fix CVE-2026-69910?

No fix has been published for CVE-2026-69910 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-69910 being exploited?

There is no known exploitation of CVE-2026-69910 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-7449-g8fw-v46f.

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