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Now, the million-dollar question is this: should you apply this third-party unofficial patch on your computer systems?
#Bitdefender virus scanner for windows for free#
"Since this is a '0day' vulnerability with no official vendor fix available, we are providing our micropatches for free until such fix becomes available," said 0patch's Mitja Kolsek. As a result, malicious code could be dropped in the Startup folder of a Windows PC, which would then be executed the next time the user logs in.Īt the time Microsoft said that it would not be fixing the bug as it did not view it as satisfying its vulnerability criteria, and "DogWalk" remained largely forgotten until last week when another flaw in MSDT that was being exploited in the wild - "Follina" - made the headlines of IT media outlets.Īlthough Microsoft may not feel that DogWalk is worthy of fixing, there are clearly organisations and individuals who would like the software on their computers to work properly and securely, and it is for them that the 0patch micropatching service released a collection of free, unofficial patches. The "DogWalk" flaw, which resides in Microsoft's Diagnostic Tool (MSDT) and affects all Windows versions going back as far as Windows 7 and Server 2008, was first disclosed to the public by security researcher Imre Rad in January 2020.ĭogWalk is a path traversal flaw that could allow for files to be saved in locations on a file system without appropriate checks being taken. A Windows zero-day vulnerability dubbed "DogWalk" has not received an official patch yet from Microsoft, but that hasn't stopped others from offering free fixes to protect users.