Backslash Vulnerability Database 
Use of Obsolete Function
Use of Obsolete Function
Use of Obsolete Function
CWE-477
Short description
The code uses deprecated or obsolete functions, which suggests that the code has not been actively reviewed or maintained.
Extended description
As programming languages evolve, functions occasionally become obsolete due to:
Functions that are removed are usually replaced by newer counterparts that perform the same task in some different and hopefully improved way.
- Advances in the language
- Improved understanding of how operations should be performed effectively and securely
- Changes in the conventions that govern certain operations
Best practices to prevent this CWE
Phase: Implementation
Refer to the documentation for the obsolete function in order to determine why it is deprecated or obsolete and to learn about alternative ways to achieve the same functionality.
Phase: Requirements
Consider seriously the security implications of using an obsolete function. Consider using alternate functions.
