This course will provide a background in several coding vulnerabilities: race conditions, format strings, and command injections. The first module discusses how the advent of parallel processing has made computers more efficient but also created new classes of vulnerabilities. We introduce the theory and practice of race condition vulnerabilities by describing what makes a code vulnerable, how it can be exploited and ways to mitigate the vulnerability. The second module introduces format string vulnerabilities, which use a deceptively simple aspect of programming: print statements. By exploiting format string vulnerabilities, an attacker can read from or write to arbitrary memory within a program. This module shows how to identify format string vulnerabilities and how to write code that is not vulnerable to attack. The last module in the course introduces command injection vulnerabilities, which take advantage of the fact that instructions and data are often mixed within programs. We demonstrate how command injection vulnerabilities can be exploited by an attacker, what to look out for and how to write code that is immune to this type of attack.