CVE-2025-49691 Windows Miracast Wireless Display Remote Code Execution Vulnerability

High 8.0 Published Updated

An attacker on an adjacent network can execute arbitrary code via a heap-based buffer overflow in Windows Miracast Wireless Display.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-49691?

CVE-2025-49691 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1507, published on 8 Jul 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over an adjacent network.

Weakness: CWE-122

Which versions are affected by CVE-2025-49691?

It affects 13 products.

Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 7 more.

How do I fix CVE-2025-49691?

No fix has been published for CVE-2025-49691 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-2025-49691 being exploited?

There is no known exploitation of CVE-2025-49691 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-4pg5-c9wr-3p6w.

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