As a case in point, in 2002 the Klez.I worm used this means of transmission to do its dirty deed, and in 2004 it was still one of the viruses most frequently detected on usersÂ’ computers. The vulnerability exploited by this worm affected the Internet Explorer browser. Other, more recent examples of malicious code exploiting software vulnerabilities and causing costly epidemics in cyberspace include Blaster, SQLSlammer, and Nachi. Today, numerous console exploits continue to be designed to exploit software vulnerabilities. The good news is that once a vulnerability is discovered, patches are issued in a shorter time than in the recent past. Nevertheless, fears continue in the security community about Zero-day exploits.
See Also: Blaster Worm; Exploit; Internet; VirusWorm; Vulnerabilities of Computers.