cgi-bin/postpf/cgi-bin/dynamic/config/config.html on Lexmark X94x before LC.BR.P142, X85x through LC4.BE.P487, X644 and X646 before LC2.MC.P374, X642 through LC2.MB.P318, W840 through LS.HA.P252, T64x before LS.ST.P344, X64xef through LC2.TI.P325, C935dn through LC.JO.P091, C920 through LS.TA.P152, C78x through LC.IO.P187, X78x through LC2.IO.P335, C77x through LC.CM.P052, X772 through LC2.TR.P291, C53x through LS.SW.P069, C52x through LS.FA.P150, 25xxN through LCL.CU.P114, N4000 through LC.MD.P119, N4050e through GO.GO.N206, N70xxe through LC.CO.N309, E450 through LM.SZ.P124, E350 through LE.PH.P129, and E250 through LE.PM.P126 printers allows remote attackers to remove the Password Protect administrative password via the vac.255.GENPASSWORD parameter.

Lexmark Markvision Enterprise before 1.8 provides a diagnostic interface on TCP port 9789, which allows remote attackers to execute arbitrary code, change the configuration, or obtain sensitive fleet-management information via unspecified vectors.

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.

Stack-based buffer overflow in the base, IPDS DLE, Forms DLE, Barcode DLE, Prescribe DLE, and Printcryption DLE components on certain Lexmark laser printers and multi-function printers allows remote attackers to execute arbitrary code or cause a denial of service (device hang) via a long argument to a PJL INQUIRE command.

The flood-protection feature in the base, IPDS DLE, Forms DLE, Barcode DLE, Prescribe DLE, and Printcryption DLE components on certain Lexmark laser and inkjet printers and MarkNet devices allows remote attackers to cause a denial of service (TCP outage) by making many passive FTP connections and then aborting these connections.

Unspecified vulnerability in the Lexmark Printer Sharing LexBce Server Service (LexPPS), possibly 8.29 and 9.41, allows remote attackers to execute arbitrary code via unspecified vectors. NOTE: This information is based on a vague initial disclosure; details will be updated after the grace period has ended.

Lexmark X1185 printer allows local users to gain SYSTEM privileges by navigating to the "Appearance" dialog and selecting the "Additional styles (skins) are available on the Lexmark web site" option, which launches a web browser that is running with SYSTEM privileges.

The HTTP server in Lexmark T522 and possibly other models allows remote attackers to cause a denial of service (server crash, reload, or hang) via an HTTP header with a long Host field, possibly triggering a buffer overflow.

Multiple buffer overflows in Lexmark MarkVision printer driver programs allows local users to gain privileges via long arguments to the cat_network, cat_paraller, and cat_serial commands.