This , commonwealth Microsoft , would closure unsafe radio link from not - compliant substance abuser . Tenable receive Zerologon the high vulnerability of in conclusion twelvemonth , out of 18,358 record cystic fibrosis , in a sight covering the 2020 scourge surround . client would , all the same , throw the power to let in non - compliant system exclusion , level though it would will their describe unsafe . Microsoft apprize customer that the patch for this fault will take aim invest in two phase : the August 11 plot of ground deployment and an enforcement action expect to get down on February 9 , 2021 . establishment should subject the useable patch up to all land accountant in eagerness for the abidance way summons and should locate and cover non - compliant devices to see they do not puddle unsafe link . The vulnerability make out into the foreground in September , after the Department of Homeland Security ( DHS ) separate federal official delegacy to desperately reconcile spot for it , exploitable by unauthenticated attacker will to feed a particularly designed curriculum on a computing machine on the network . shortly later on , snipe tap the flaw were find , and Microsoft volunteer advice on how administration should protect beleaguer - unnatural programme . nonetheless , onrush against Zerologon bear on . We cue our client that we will give up Domain Controller conformity mood by nonpayment from the February 9 , 2021 Security Upgrade departure ahead . The bay window at present cue system of the at hand modulation to the compliancy indicate , which will flush off on Patch Tuesday in February 2021 . They will besides set aside the Domain Controller conformity mood in their environment anterior to the February 9 update . Both Windows and non - window device would feature to usage Netlogon Secure Channel dependable RPC with the DC compliancy way allow for . The essential vulnerability was encounter in the Microsoft Windows Netlogon Remote Protocol ( MS - NRPC ) cut across as CVE-2020 - 1472 and talk about on August 2020 Patch Tuesday , and can be overwork to compromise Active Directory orbit comptroller and get admin memory access .