Eaton HMISoft is prone to a buffer-overflow vulnerability that occurs because it fails to perform adequate boundary checks on user-supplied data via a crafted .VU3 document. This module runs a malicious web server on the Core Impact Console and waits for an unsuspecting user to trigger the exploit by connecting to it.
smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.