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| Weakness ID: 563 (Weakness Variant) | | Status: Draft |
 Description
Description Summary The variable's value is assigned but never used, making it a dead store.
Extended Description It is likely that the variable is simply vestigial, but it is also possible that the unused variable points out a bug.
Time of Introduction Common Consequences | Scope | Effect |
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Other | Technical Impact: Quality degradation |
Demonstrative Examples Example 1 The following code excerpt assigns to the variable r and then
overwrites the value without using it. (Bad Code) Example
Language: C r = getName(); r = getNewBuffer(buf); Potential Mitigations
Remove unused variables from the code. |
Other Notes
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This variable's value is not used. After the assignment, the variable is
either assigned another value or goes out of scope.
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Relationships Taxonomy Mappings | Mapped Taxonomy Name | Node ID | Fit | Mapped Node Name |
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| Anonymous Tool Vendor (under NDA) | | | |
| CERT C Secure Coding | MSC00-C | | Compile cleanly at high warning levels |
| CERT C++ Secure Coding | MSC00-CPP | | Compile cleanly at high warning levels |
Content History | Submissions |
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| Submission Date | Submitter | Organization | Source |
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| Anonymous Tool Vendor (under NDA) | | Externally Mined | | | Modifications |
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| Modification Date | Modifier | Organization | Source |
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| 2008-07-01 | Eric Dalci | Cigital | External | | updated Potential_Mitigations,
Time_of_Introduction | | 2008-09-08 | CWE Content Team | MITRE | Internal | | updated Description, Relationships, Other_Notes,
Taxonomy_Mappings | | 2008-11-24 | CWE Content Team | MITRE | Internal | | updated Relationships,
Taxonomy_Mappings | | 2009-05-27 | CWE Content Team | MITRE | Internal | | updated Demonstrative_Examples | | 2011-06-01 | CWE Content Team | MITRE | Internal | | updated Common_Consequences | | 2011-06-27 | CWE Content Team | MITRE | Internal | | updated Common_Consequences | | 2011-09-13 | CWE Content Team | MITRE | Internal | | updated Relationships,
Taxonomy_Mappings |
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