CVE-2021-41526: Flexera Revenera Installshield

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability has been reported in the windows installer (MSI) built with InstallScript custom action. This vulnerability may allow privilege escalation when invoked ‘repair’ of the MSI which has an InstallScript custom action.

Affected products

• Flexera Revenera Installshield: before 2021 (fixed in 2021); version 2021 only

Published 2023-03-29. Last modified 2026-06-17.