COMMON WEAKNESS ENUMERATIONIncomplete

CWE-758

Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

The product uses an API function, data structure, or other entity in a way that relies on properties that are not always guaranteed to hold for that entity.

Abstraction

Class

Structure

Simple

Likelihood of Exploit

Medium

Understand the problem

What is the problem?

The product uses an API function, data structure, or other entity in a way that relies on properties that are not always guaranteed to hold for that entity.

Extended description

This can lead to resultant weaknesses when the required properties change, such as when the product is ported to a different platform or if an interaction error (CWE-435) occurs.

Root cause

How and when does the problem arise?

Lifecycle phase

Implementation

Risk

What does successful exploitation lead to?

Reduce MaintainabilityUnexpected StateQuality Degradation

Affected security scopes: Other

Defence

How is it prevented and fixed?

  • Follow secure coding guidelines for input handling and boundary checking.
  • Enforce strict security reviews and automated static analysis (SAST) checks.

Verification

How is it detected?

Fuzzing

High
Fuzz testing (fuzzing) is a powerful technique for generating large numbers of diverse inputs - either randomly or algorithmically - and dynamically invoking the code with those inputs. Even with random inputs, it is often capable of generating unexpected results such as crashes, memory corruption, or resource consumption. Fuzzing effectively produces repeatable test cases that clearly indicate bugs, which helps developers to diagnose the issues.