Adobe Digital Editions before 4.5.2 allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4256, CVE-2016-4257, CVE-2016-4259, CVE-2016-4260, CVE-2016-4261, and CVE-2016-4262.
https://helpx.adobe.com/security/products/Digital-Editions/apsb16-28.html