Microsoft Windows Defender Firewall CVE-2019-0637 Security Feature Bypass Vulnerability

Description

A security feature bypass vulnerability exists when Windows Defender Firewall incorrectly applies firewall profiles to cellular network connections. This vulnerability occurs when Windows is connected to both an ethernet network and a cellular network. An attacker would have no way to trigger this vulnerability remotely, and this vulnerability by itself does not allow Windows to be exploited. This update addresses the behavior by correcting how Windows Defender Firewall handles firewall profiles when ethernet and cellular network connections are both present.

Affected Applications

Windows 10
Windows Server version 1803 (Server Core Installation)
Windows Server version 1709 (Server Core Installation)
Windows Server 2019

CVE References

Other References