Lexmark Printer Security Vulnerability Discovered
By silkek on September 7, 2022
Last updated on March 31, 2026

A critical firmware vulnerability has been discovered in over 100 Lexmark printer models, making it possible for attackers to infiltrate devices and potentially compromise them permanently. This incident highlights the ongoing need for reliable print security measures to protect business networks.

The warning came directly from Lexmark, with reports indicating that the security flaw in the firmware allows attackers to infiltrate printer devices after an initial breach. Further, the vulnerability could allow an attacker to rewrite the firmware itself, posing a risk of permanent device compromise. While the vulnerability does not initiate an intrusion, Lexmark rates it as critical due to the potential for severe damage once access is gained.
Which Lexmark Printers Are Affected by this Vulnerability?
Over 100 Lexmark printer models are affected. Firmware patches are available for the 120 affected printer models, and these can be found in a list published by Lexmark. These patches can be downloaded from Lexmark's support website.
Businesses using these models should update the firmware on their affected printers immediately to maintain the security of their systems.
You can download our free printer security checklist.
Frequently Asked Questions
What is the Lexmark printer security vulnerability?
A critical firmware vulnerability has been discovered in over 100 Lexmark printer models. This flaw allows attackers to compromise the printer and even rewrite its firmware, potentially leading to persistent device compromise.
Which Lexmark printer models are affected by this vulnerability?
Approximately 120 Lexmark printer models are affected by this security vulnerability. Lexmark has released firmware patches for these specific models.
What kind of risk does this Lexmark vulnerability pose?
The vulnerability could allow an attacker to gain control of the printer and infiltrate the devices. This is considered critical because it could lead to persistent compromise of the device.
How can I fix the security vulnerability on my Lexmark printer?
Lexmark has made firmware patches available to address the vulnerability in affected models. You should update your printer's firmware to the latest version to mitigate this risk.
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