The report will cover the results of the system analysis of all zero-day vulnerabilities found in Java in 2012 and 2013 (CVE-2013-1493, CVE-2013-0431, CVE-2013-0422, CVE-2012-5076, CVE-2012-4681, CVE-2012-1723, CVE-2012-1507). The aim of the research was to find out regularities pointing out the same resource or the same method of vulnerability data search. Boris Ryutin graduated from the Faculty of Aircraft and Rocket Engineering, BSTU "Voenmekh" in 2009 (speciality "Flight Dynamics and Aircraft Traffic Control"). He is an analytical engineer at Esage Lab, a regular author of the "Hacker" magazine. Teaches malware code analysis. He was awarded by Yandex for achievements in the Bug Bounty Program. Kolomna, RussiaBoris Ryutin Boris Ryutin, Alisa Shevchenko