Advisory Title: Zillya Total Security 3.0.2367.0 Local Privilege Escalation via Quarantine Module Severity: High Date: December 22, 2025 Affected Software: Zillya Total Security 3.0.2367.0 CVE Identifier: CVE-2023-53973 CWE Identifier: CWE-266 Incorrect Privilege Assignment CVSS Score: 9.8 (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N) References: - ExploitDB-51151 - Zillya Official Homepage Credit: M. Akil Gündoğan Description: Zillya Total Security 3.0.2367.0 contains a privilege escalation vulnerability that allows low-privileged users to copy files to unauthorized system locations using the quarantine module. Attackers can leverage symbolic link techniques to restore quarantined files to restricted directories, potentially enabling system-level access through techniques like DLL hijacking.