Skip to content
OpenAdvisories

Weakness (CWE)

CWE-252: Unchecked Return Value

Base Draft

The product does not check the return value from a method or function.

How to prevent it (4 mitigations)

  1. Implementation

    Check the results of all functions that return a value and verify that the value is expected.

  2. Implementation

    For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].

  3. Implementation

    Ensure that you account for all possible return values from the function.

  4. Implementation

    When designing a function, make sure you return a value or throw an exception in case of an error.

Source: MITRE CWE-252

All Critical High Medium Low Exploited only Public exploit

2 results · Clear filters · Feed