If you googled "CVE_2015_1692", the description would have showed you:
Microsoft Internet Explorer 7 through 11 allows user-assisted remote
attackers to read the clipboard contents via crafted web script, aka
"Internet Explorer Clipboard Information Disclosure Vulnerability."
So, if you're running versions 7 through 11 of Microsoft Internet Explorer...
ClamAV (did you read man -k clamav
?) plus "Firewall" (do you mean UFW
(did you read man ufw
)) "enough"? No. No tool or combination of tools can make you more secure without your understanding. Nothing (except unplug & bury in cement) can make a computer system "secure".
What network environment is your system connected to? T4, DSL, Fiber, WiFi? What data/capabilities are you trying to "secure"? Against whom? Have you considered "rubber hose cryptanalysis"?