Better do not upgrade for the moment to latest 6.41.x versions, since there are bigger flaws there, than a theoretical SMB security issue (like e.g. DHCP server not working in bridge configurations). 6.40.6 would be a better option. A proper firewall rule disallowing SMB access from the internet would do a much better job (and if you had SMB or administrative access widely opened to the internet, that's naive, to use a kind word). Marius, YO2LOJ On 18.03.2018 07:52, R P wrote: > For you (and me) that use Mikrotik routers For AmprNet (but not only for AMPRNet > > > Recommended to Upgrade the latest OS Release > > > Ronen - 4Z4ZQ > > > > https://www.securityweek.com/remotely-exploitable-vulnerability-discovered-… > > Remotely Exploitable Vulnerability Discovered in MikroTik&#039;s RouterOS | SecurityWeek.Com<https://www.securityweek.com/remotely-exploitable-vulne… > www.securityweek.com > A MikroTik RouterOS SMB buffer overflow vulnerability (CVE-2018-7445) allows a remote attacker with access to the service to gain code execution on the system. > > > >