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Generated remediation guidance and an executive summary. No account required.
Check Point Endpoint Security Client for Windows before version E84.20 allows write access to the directory from which the installation repair takes place. Since the MS Installer allows regular users to run the repair, an attacker can initiate the installation repair and place a specially crafted DLL in the repair folder which will run with the Endpoint client’s privileges.
Use CWE-427, Checkpoint vendor hub and Endpoint Security product page to widen CVE-2020-6021 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2023-28134, CVE-2023-28133 and CVE-2022-23742 for nearby disclosures in the same product family. Additional editorial context is available in Cybersecurity Weekly Roundup: April 27, 2026 — Critical Zero-Days and Framework Failures.