CVE-2025-27487 Remote Desktop Client Remote Code Execution Vulnerability

High 8.0 Published 8 Apr 2025 Updated 10 Aug 2026

An authorized attacker can execute arbitrary code via a heap-based buffer overflow in the Windows Remote Desktop Client.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-27487?

CVE-2025-27487 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1507, published on 8 Apr 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Heap-based buffer overflow in Remote Desktop Client allows an authorized attacker to execute code over a network.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2025-27487?

It affects 17 products.

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

How do I fix CVE-2025-27487?

No fix has been published for CVE-2025-27487 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-2025-27487 being exploited?

There is no known exploitation of CVE-2025-27487 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-v3mw-3vwm-c6c7.