CVE-2025-29966 Remote Desktop Client Remote Code Execution Vulnerability
An unauthorized attacker can execute arbitrary code remotely via a heap-based buffer overflow in the Windows 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-2025-29966?
CVE-2025-29966 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1507, published on 13 May 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
Heap-based buffer overflow in Windows Remote Desktop allows an unauthorized attacker to execute code over a network.
Which versions are affected by CVE-2025-29966?
It affects 17 products.
Products include Microsoft Remote Desktop, 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-2025-29966?
No fix has been published for CVE-2025-29966 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-2025-29966 being exploited?
There is no known exploitation of CVE-2025-29966 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1507
Sources
Also known as GHSA-2j86-v657-3w4j.