CVE-2026-50518 Windows DHCP Server Remote Code Execution Vulnerability

Critical 9.8 Published Updated

An unauthorized attacker can execute arbitrary code remotely via a heap-based buffer overflow in the Windows DHCP Server service.

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-2026-50518?

CVE-2026-50518 is a critical memory corruption vulnerability in Microsoft Windows 10 1607, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.

Weakness: CWE-122

Which versions are affected by CVE-2026-50518?

It affects 7 products.

Products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022 and 1 more.

How do I fix CVE-2026-50518?

No fix has been published for CVE-2026-50518 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-2026-50518 being exploited?

There is no known exploitation of CVE-2026-50518 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-ppgf-28qj-x35r.

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