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Warning for Windows 7 KB4480970 (SMBv2 shares)


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Warning for Windows 7 KB4480970 (SMBv2 shares)

After installing KB4480970 on a Windows 7 PC hosting a SMBv2 share it could not be connected to anymore.

After deinstalling the update it was working again.


Windows 7 SP1 and Windows Server 2008 R2 SP1

KB4480970 Monthly Rollup

    Protection against Speculative Story Bypass CVE-2018-3639 for AMD-based computers
    Security updates to Windows Kernel, Windows Storage and Filesystems, Windows Wireless        
Networking, and the Microsoft JET Database Engine.


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Interesting, I wonder if this has anything to do with the kind of vulnerability that plagued SMBv1 (the EternalBlue exploit employed in the original WannaCry/WannaCrypt0r attacks/epidemic)?

I disable all the sharing/remote stuff on my systems so if it broke anything with that I would not have noticed, so thanks for the info as I'm sure there are plenty of users who do use this functionality, especially for local shared network storage setups.

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