FreeNAS before 9.3-M3 has a blank admin password, which allows remote attackers to gain root privileges by leveraging a WebGui login.
https://bugs.freenas.org/issues/5844
http://www.securityfocus.com/bid/69249
http://www.openwall.com/lists/oss-security/2014/08/19/2
Source: Mitre, NVD
Published: 2018-01-08
Updated: 2018-01-29
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H