Quote:Microsoft released the KB4551762 security update to patch the pre-auth RCE Windows 10 vulnerability found in Microsoft Server Message Block 3.1.1 (SMBv3), two days after details regarding the flaw were leaked as part of the March 2020 Patch Tuesday.
The KB4551762 security update tracked as CVE-2020-0796 addresses "a network communication protocol issue that provides shared access to files, printers, and serial ports," according to Microsoft.
KB4551762 can be installed by checking for updates via Windows Update or by manually downloading it for your Windows version from the Microsoft Update Catalog.
This vulnerability, dubbed SMBGhost, only impacts devices running Windows 10, version 1903 and 1909, and Windows Server Server Core installations, versions 1903 and 1909.
Microsoft explained that the vulnerability only exists in a new feature added to Windows 10 version 1903 and that older versions of Windows do not offer support for SMBv3.1.1 compression, the feature behind this bug.
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