Using Fuzzing to Detect Security Vulnerabilities

Besides all the advantages that the fuzzing techniques offer, it is important to note it is not a universal method for security vulnerability detection. In order to detect a certain security vulnerability, the target application has a set of specific conditions for which the fuzzing tool might not be used. In cases like this, some other methods have to be applied, depending on the type of a security vulnerability that is being analyzed. When network applications are being discussed, it is important to note that the fuzzing technique is very useful for general testing of the application stability as tests like these can be destructive.

Leon Juranic's article (through Gadi Evron's post in securiteam blogs). It is a practical article.