CVE-2025-48817 Remote Desktop Client Remote Code Execution Vulnerability

High 8.8 Published 8 Jul 2025 Updated 26 Feb 2026

An attacker can execute arbitrary code remotely via a path traversal flaw in the Microsoft Remote Desktop Client.

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

What is CVE-2025-48817?

CVE-2025-48817 is a high-severity path traversal vulnerability in Microsoft Windows 10 1507, published on 8 Jul 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Relative path traversal in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Weakness: CWE-284, CWE-23

Which versions are affected by CVE-2025-48817?

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-2025-48817?

No fix has been published for CVE-2025-48817 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-48817 being exploited?

There is no known exploitation of CVE-2025-48817 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-chxm-rfr8-cf28.