Lexmark International Inc.

Lexmark International manufactures a broad line of multifunction printers and imaging devices deployed across enterprise and mid-market environments, creating a large attack surface spanning numerous product families and firmware revisions. Vulnerabilities affecting the vendor skew strongly toward critical-severity outcomes and frequently acquire public exploit code, reflecting the combination of embedded complexity, network accessibility, and deep trust these devices hold in organizational infrastructure. The recurring exposure centers on printer and copier products such as the CX310, X46x, M5163DN, MS811, and MS817 series and clusters through weakness classes including improper input validation, buffer-boundary violations, path-traversal flaws, cross-site scripting, and sensitive-information disclosure—patterns endemic to embedded web interfaces and document-processing firmware. Defenders should treat Lexmark device firmware as a critical-patching category, inventory internet-reachable or network-accessible units, and apply administrative controls to isolate management interfaces; current severity, exploitation activity, and exposure counts are shown alongside this summary.