CVE-2026-4869 Potential Privilege Escalation in InstallShield

A potential privilege escalation issue was identified in InstallShield version 2025 R2 and earlier when running compressed Basic MSI setup with Prerequisites from an insecure location. If a local administrator launches a compressed Setup.exe with Prerequisites from an unsecured location, the...

CVE-2026-4869

A potential privilege escalation issue exists in InstallShield version 2025 R2 and earlier . The vulnerability occurs when a local administrator executes a compressed Basic MSI setup with Prerequisites from an insecure location. Because the Prerequisite installers may also be loaded from an unsec...