CVE-2026-71352 Windows Remote Access Connection Manager Remote Code Execution Vulnerability

High 8.8 Published Updated

An authorized attacker can execute code over a network via an integer underflow in Windows Remote Access Connection Manager.

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

What is CVE-2026-71352?

CVE-2026-71352 is a high-severity vulnerability in Microsoft Windows 10 1607, published on 8 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authorized attacker to execute code over a network.

Weakness: CWE-191

Which versions are affected by CVE-2026-71352?

It affects 13 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 7 more.

How do I fix CVE-2026-71352?

No fix has been published for CVE-2026-71352 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-71352 being exploited?

There is no known exploitation of CVE-2026-71352 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-63x8-c5qw-82x6.

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