CVE-2025-59502 Remote Procedure Call Denial of Service Vulnerability

High 7.5 Published Updated

An unauthorized attacker can cause a denial of service in Windows Remote Procedure Call by exploiting uncontrolled resource consumption.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-59502?

CVE-2025-59502 is a high-severity denial of service vulnerability in Microsoft Windows 10 1809, published on 14 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Uncontrolled resource consumption in Windows Remote Procedure Call allows an unauthorized attacker to deny service over a network.

Weakness: CWE-400

Which versions are affected by CVE-2025-59502?

It affects 10 products.

Products include Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2 and 4 more.

How do I fix CVE-2025-59502?

No fix has been published for CVE-2025-59502 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-59502 being exploited?

There is no known exploitation of CVE-2025-59502 in the wild and no public exploit code.

All Microsoft Windows 10 1809 vulnerabilities

Sources

Also known as GHSA-4v4g-vfv9-gvgj.

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