An exploitable heap overflow vulnerability exists in the Compound Binary File Format (CBFF) parser functionality of Lexmark Perceptive Document Filters library. A specially crafted CBFF file can cause a code execution. An attacker can send a malformed file to trigger this vulnerability.

An exploitable buffer overflow exists in the XLS parsing of the Lexmark Perspective Document Filters conversion functionality. A crafted XLS document can lead to a stack based buffer overflow resulting in remote code execution.

Lexmark Scan To Network (SNF) 3.2.9 and earlier stores network configuration credentials in plaintext and transmits them in requests, which allows remote attackers to obtain sensitive information via requests to (1) cgi-bin/direct/printer/prtappauth/apps/snfDestServlet or (2) cgi-bin/direct/printer/prtappauth/apps/ImportExportServlet.

An exploitable arbitrary read exists in the XLS parsing of the Lexmark Perspective Document Filters conversion functionality. A crafted XLS document can lead to a arbitrary read resulting in memory disclosure. The vulnerability was confirmed on versions 11.3.0.2228 and 11.3.0.2400

Lexmark printers with firmware ATL before ATL.021.063, CB before CB.021.063, PP before PP.021.063, and YK before YK.021.063 mishandle Erase Printer Memory and Erase Hard Disk actions, which allows physically proximate attackers to obtain sensitive information via direct read operations on non-volatile memory.

Race condition in the initialization process on Lexmark printers with firmware ATL before ATL.02.049, CB before CB.02.049, PP before PP.02.049, and YK before YK.02.049 allows remote attackers to bypass authentication by leveraging incorrect detection of the security-jumper status.

Directory traversal vulnerability in the LibraryFileUploadServlet servlet in Lexmark Markvision Enterprise allows remote authenticated users to write to and execute arbitrary files via a .. (dot dot) in a file path in a ZIP archive.

Multiple cross-site scripting (XSS) vulnerabilities on Lexmark W840 through LS.HA.P252, T64x before LS.ST.P344, C935dn through LC.JO.P091, C920 through LS.TA.P152, C53x through LS.SW.P069, C52x through LS.FA.P150, E450 through LM.SZ.P124, E350 through LE.PH.P129, and E250 through LE.PM.P126 printers allow remote authenticated users to inject arbitrary web script or HTML by using (1) SNMP or (2) the Embedded Web Server (EWS) to set the (a) Contact or (b) Location field.

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.

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.

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.

In certain Lexmark products through 2023-01-12, SSRF can occur because of a lack of input validation.

Lexmark products through 2023-01-10 have Improper Control of Interaction Frequency.

Certain Lexmark devices through 2023-02-19 mishandle Input Validation (issue 4 of 4).

Certain Lexmark devices through 2023-02-19 mishandle Input Validation (issue 3 of 4).

Certain Lexmark devices through 2023-02-19 mishandle Input Validation (issue 1 of 4).

Certain Lexmark devices through 2023-02-19 have Improper Validation of an Array Index.

Certain Lexmark devices through 2023-02-19 have an Integer Overflow.