CVE-2021-44734: Lexmark 6500e Firmware

Critical severity, CVSS 9.8. EPSS: 6.2% chance of exploitation in the next 30 days.

Embedded web server input sanitization vulnerability in Lexmark devices through 2021-12-07, which can which can lead to remote code execution on the device.

Affected products

  • Lexmark 6500e Firmware: before lhs60.jr.p753 (fixed in lhs60.jr.p753)
  • Lexmark b2236 Firmware: before mslsg.076.294 (fixed in mslsg.076.294)
  • Lexmark b2338 Firmware: before msngm.076.294 (fixed in msngm.076.294)
  • Lexmark b2442 Firmware: before msngm.076.294 (fixed in msngm.076.294)
  • Lexmark b2546 Firmware: before msngm.076.294 (fixed in msngm.076.294)
  • Lexmark b2650 Firmware: before msngm.076.294 (fixed in msngm.076.294)
  • Lexmark b2865 Firmware: before msngw.076.294 (fixed in msngw.076.294)
  • Lexmark b3340 Firmware: before mslbd.076.294 (fixed in mslbd.076.294)
  • Lexmark b3442 Firmware: before mslbd.076.294 (fixed in mslbd.076.294)
  • Lexmark c2132 Firmware: before lw80.vy4.p210 (fixed in lw80.vy4.p210)
  • Lexmark c2240 Firmware: before cstzj.076.294 (fixed in cstzj.076.294)
  • Lexmark c2325 Firmware: before csnzj.076.294 (fixed in csnzj.076.294)
  • Lexmark c2326 Firmware: before cslbn.076.294 (fixed in cslbn.076.294)
  • Lexmark c2425 Firmware: before csnzj.076.294 (fixed in csnzj.076.294)
  • Lexmark c2535 Firmware: before csnzj.076.294 (fixed in csnzj.076.294)
  • Lexmark c3224 Firmware: before cslbl.076.294 (fixed in cslbl.076.294)
  • Lexmark c3326 Firmware: before cslbl.076.294 (fixed in cslbl.076.294)
  • Lexmark c3426 Firmware: before cslbn.076.294 (fixed in cslbn.076.294)
  • Lexmark c4150 Firmware: before cstat.076.294 (fixed in cstat.076.294)
  • Lexmark c6160 Firmware: before cstpp.076.294 (fixed in cstpp.076.294)
  • Lexmark c734 Firmware: before lr.sk.p835 (fixed in lr.sk.p835)
  • Lexmark c736 Firmware: before lr.ske.p835 (fixed in lr.ske.p835)
  • Lexmark c746 Firmware: before lhs60.cm2.p753 (fixed in lhs60.cm2.p753)
  • Lexmark c748 Firmware: before lhs60.cm4.p753 (fixed in lhs60.cm4.p753)
  • Lexmark c792 Firmware: before lhs60.hc.p753 (fixed in lhs60.hc.p753)
  • and 209 more

Published 2022-01-20. Last modified 2026-06-17.