VULNERABILITY INTELLIGENCE

CVE-2005-0337

CVSS score7.5 HIGH
EPSS probability2.81%
CISA KEVNot currently listed
Published2005-05-02
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P

Description

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.

Primary references