The Lexmark Universal Print Driver version 2.15.1.0 and below, G2 driver 2.7.1.0 and below, G3 driver 3.2.0.0 and below, and G4 driver 4.2.1.0 and below are affected by a privilege escalation vulnerability. A standard low priviliged user can use the driver to execute a DLL of their choosing during the add printer process, resulting in escalation of privileges to SYSTEM.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-35449
• https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_02.txt
• http://packetstormsecurity.com/files/163811/Lexmark-Driver-Privilege-Escalation.html
• http://support.lexmark.com/alerts/