CVE-2025-21349 Windows Remote Desktop Configuration Service Tampering Vulnerability

Medium 6.8 Published Updated

Attackers can tamper with the Windows Remote Desktop Configuration Service to bypass authentication and escalate privileges.

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-2025-21349?

CVE-2025-21349 is a medium-severity authentication bypass vulnerability in Microsoft Windows 10 1507, published on 11 Feb 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

Windows Remote Desktop Configuration Service Tampering Vulnerability

Weakness: CWE-287

Which versions are affected by CVE-2025-21349?

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-2025-21349?

No fix has been published for CVE-2025-21349 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-21349 being exploited?

There is no known exploitation of CVE-2025-21349 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-h6vc-5925-xpc3.

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