参照： Official debian advisory, NVD, CVE.org · CVE 詳細
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2004-2771 not yet assigned priority: Debian including 1 source packages (bsd-mailx), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.
The expand function in fio.c in Heirloom mailx 12.5 and earlier and BSD mailx 8.1.2 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in an email address.