- Exercise 104: Warm-up - Yatzy in C
- Exercise 151: Fix Heartbleed (CVE-2014-0160: Heartbleed)
- Exercise 321: Bypassing checks through attacker controlled numbers (CWE-190 and CWE-197: Bypassing Checks)
- Exercise 321: Will the signed integer addition overflow? (CWE-190: Signed Integer Addition Overflow)
- Exercise 322: Numeric Conversions (CWE-704: Unsigned/Signed Comparisons)
- Exercise 324: Incorrect Type Conversion (CWE-704: Incorrect Type Conversion)
- Exercise 431: Buffer Overflow (CWE-121, CWE-122 and CWE-124: Array Bounds)
- Exercise 433: Free In Error Path (CWE-415 and CWE-416: Free In Error Path)