CWE-1109βUse of Same Variable for Multiple Purposes
PUBLISHEDweakness record
released 2019-01-03 Β· last modified 2025-12-11
Metadata
- CWE ID:
- CWE-1109
- Abstraction:
- Base
- Structure:
- Simple
- Status:
- Incomplete
- Release Date:
- 2019-01-03
- Latest Modification Date:
- 2025-12-11
Weakness Name
Use of Same Variable for Multiple Purposes
Description
The code contains a callable, block, or other code element in which the same variable is used to control more than one unique task or store more than one instance of data.
Common Consequences
- Scope:
- Other
- Impact:
- Reduce Maintainability
- Notes:
- This issue makes it more difficult to maintain the product, which indirectly affects security by making it more difficult or time-consuming to find and/or fix vulnerabilities. It also might make it easier to introduce vulnerabilities.
- Scope:
- Other
- Impact:
- Increase Analytical Complexity
- Notes:
- Use of the same variable for multiple purposes can make it more difficult for a person to read or understand the code, potentially hiding other quality issues.