It indicate a possible exploit of a Command Execution vulnerability in Majordomo.Majordomo is an Internet e-mail list server written in Perl. Certain versions are vulnerable to specially crafted e-mail headers which can cause unauthorized command execution.
Great Circle Associates Majordomo 1.90 and Great Circle Associates Majordomo 1.89
Compromise of the affected system.
Apply appropriate patch from the vendor or Upgrade to non-vulnerable version if available.