7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.026 Low
EPSS
Percentile
90.3%
Postfix 2.1.3, when /proc/net/if_inet6 is not available and
permit_mx_backup is enabled in smtpd_recipient_restrictions, allows remote
attackers to bypass e-mail restrictions and perform mail relaying by
sending mail to an IPv6 hostname.