CVE-2024-21307 Remote Desktop Client Remote Code Execution Vulnerability

High 7.5 Published Updated

Attackers can execute arbitrary code via a use-after-free flaw in the Windows Remote Desktop Client, requiring immediate patching.

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-2024-21307?

CVE-2024-21307 is a high-severity use after free vulnerability in Microsoft Windows 10 1507, published on 9 Jan 2024. 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

Remote Desktop Client Remote Code Execution Vulnerability

Weakness: CWE-362, CWE-416

Which versions are affected by CVE-2024-21307?

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 21h2 and 7 more.

How do I fix CVE-2024-21307?

No fix has been published for CVE-2024-21307 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2024-21307 being exploited?

There is no known exploitation of CVE-2024-21307 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-fv65-2c76-4jh9.

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