CVE-2021-23877: McAfee Total Protection

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Privilege escalation vulnerability in the Windows trial installer of McAfee Total Protection (MTP) prior to 16.0.34_x may allow a local user to run arbitrary code as the admin user by replacing a specific temporary file created during the installation of the trial version of MTP.

Affected products

• McAfee Total Protection: before 16.0.34 (fixed in 16.0.34)

Published 2021-10-26. Last modified 2026-06-17.