VULNERABILITY INTELLIGENCE

CVE-2004-2771

CVSS score7.5 HIGH
EPSS probability6.86%
CISA KEVNot currently listed
Published2014-12-24
Last modified2026-09-23
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P

Description

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.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references