Adobe usually packages their monthly security releases to coincide with Microsoft’s “Patch Tuesday” (second Tuesday of each month), however to active exploits and targeted attacks in-the-wild, an emergency out-of-band release was made

https://helpx.adobe.com/security/products/flash-player/apsb15-27.html

Adobe has released security updates for Adobe Flash Player.  These updates address critical vulnerabilities that could potentially allow an attacker to take control of the affected system.  Adobe is aware of a report that an exploit for CVE-2015-7645 is being used in limited, targeted attacks.   These updates resolve type confusion vulnerabilities that could lead to code execution (CVE-2015-7645, CVE-2015-7647, CVE-2015-7648).