SMB implementations in EMC Celerra, VNX1, VNX2 and VNXe are affected by an NTLM authentication weak nonce vulnerability that could potentially be exploited by malicious users to compromise the affected system. EMC VNX2 File OE versions prior to 8.1.9.155, EMC VNX1 File OE versions prior to 7.1.80.3, and all supported versions of EMC VNXe and EMC Celerra are affected.