CVE-2019-1212 Windows DHCP Server Denial of Service Vulnerability

Critical 9.8 Published 14 Aug 2019 Updated 4 Aug 2024

Remote unauthenticated attackers can cause a denial of service in Windows DHCP Server by sending specially crafted packets that trigger memory corruption.

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-2019-1212?

CVE-2019-1212 is a critical memory corruption vulnerability in Microsoft Windows 10, published on 14 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A memory corruption vulnerability exists in the Windows Server DHCP service when processing specially crafted packets. An attacker who successfully exploited the vulnerability could cause the DHCP server service to stop responding. To exploit the vulnerability, a remote unauthenticated attacker could send a specially crafted packet to an affected DHCP server. The security update addresses the vulnerability by correcting how DHCP servers handle network packets.

Weakness: CWE-787

Which versions are affected by CVE-2019-1212?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2019-1212?

No fix has been published for CVE-2019-1212 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-2019-1212 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-1212 exists.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-ggpr-x33h-6668.