The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Family: SMTP Clients
Risk Factor: High
Base Score: 9.3
Temporal Score: 6.9
Temporal Vector: CVSS2#E:U/RL:OF/RC:C
Patch Publication Date: 5/14/2013
Vulnerability Publication Date: 5/14/2013