Windows Defender Firewall Security Feature Bypass Vulnerability
CVE-2019-0637 is fixed in 13 products on 1 platform, first by KB4486996, released February 12, 2019. It is not reported as exploited. Patch Radar priority: Routine.
<p>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.</p> <p>An attacker would have no way to trigger this vulnerability remotely, and this vulnerability by itself does not allow Windows to be exploited.</p> <p>This update addresses the behavior by correcting how Windows Defender Firewall handles firewall profiles when ethernet and cellular network connections are both present.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1709 for 32-bit Systems | 16299.967 | KB4486996 | Feb 12, 2019 |
| Windows 10 Version 1709 for ARM64-based Systems | 16299.967 | KB4486996 | Feb 12, 2019 |
| Windows 10 Version 1709 for x64-based Systems | 16299.967 | KB4486996 | Feb 12, 2019 |
| Windows 10 Version 1803 for 32-bit Systems | 17134.590 | KB4487017 | Feb 12, 2019 |
| Windows 10 Version 1803 for ARM64-based Systems | 17134.590 | KB4487017 | Feb 12, 2019 |
| Windows 10 Version 1803 for x64-based Systems | 17134.590 | KB4487017 | Feb 12, 2019 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.316 | KB4487044 | Feb 12, 2019 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.316 | KB4487044 | Feb 12, 2019 |
| Windows 10 Version 1809 for x64-based Systems | 17763.316 | KB4487044 | Feb 12, 2019 |
| Windows Server 2019 | 17763.316 | KB4487044 | Feb 12, 2019 |
| Windows Server 2019 (Server Core installation) | 17763.316 | KB4487044 | Feb 12, 2019 |
| Windows Server, version 1709 (Server Core Installation) | 16299.967 | KB4486996 | Feb 12, 2019 |
| Windows Server, version 1803 (Server Core Installation) | 17134.590 | KB4487017 | Feb 12, 2019 |
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