{"id":"CVE-2026-4869","title":"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","summary":"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…","severity":"none","cwe":["CWE-426"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T16:17:20.863","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-4869","references":[{"url":"https://community.revenera.com/s/article/CVE-2026-4869-Potential-Privilege-Escalation-in-InstallShield-2025-R2-running-Setup-Prerequisites-from-an-insecure-directory","label":"PSIRT-CNA@flexerasoftware.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T15:33:40.077Z","slug":"CVE-2026-4869","body":"## Overview\n\nA 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 Prerequisite installers also might load from an unsecured location, potentially leading to privilege escalation.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}