Lexmark X, W, T, E, and C devices before 2012-02-09 allow attackers to obtain sensitive information by reading passwords within exported settings.

Lexmark X, W, T, E, C, 6500e, and 25xxN devices before 2011-11-15 allow attackers to obtain sensitive information via a hidden email address in a Scan To Email shortcut.

The embedded HTTP server in multiple Lexmark laser and inkjet printers and MarkNet devices, including X94x, W840, T656, N4000, E462, C935dn, 25xxN, and other models, allows remote attackers to cause a denial of service (operating system halt) via a malformed HTTP Authorization header.