{"cve":"CVE-2005-0337","nvd":{"published":"2005-05-02T04:00:00.000","modified":"2026-06-16T22:10:56.153","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=267837","http://marc.info/?l=bugtraq&m=110763358832637&w=2","http://secunia.com/advisories/14137/","http://www.redhat.com/support/errata/RHSA-2005-152.html","http://www.securityfocus.com/bid/12445"],"products":["redhat:enterprise_linux","redhat:enterprise_linux_desktop","suse:suse_linux","wietse_venema:postfix"],"source":"nvd","synced_at":"2026-10-19T19:38:22.000386253+00:00"},"epss":{"cve":"CVE-2005-0337","score":0.02806,"percentile":0.86494,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}