Description

An AWS Security Group acts as a virtual firewall for your instances to control inbound and outbound traffic. We identified the security group ""{AwsEc2SecurityGroup}"" ({AwsEc2SecurityGroup.GroupId}) is configured to allow inbound access to TCP port 139 and UDP ports 137 and 138 (NetBIOS) from any IP address (0.0.0.0/0 or ::/0).