ClassIncomplete

CWE-758Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

Category: other

Description

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. 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.

Common consequences· 1

  • Other — Reduce Maintainability, Unexpected State, Quality Degradation

References

  1. https://cwe.mitre.org/data/definitions/758.html

(incoming)10

TypeTargetConfidenceTier
VulnerabilityCVE-2026-21677cve-2026-216770%live
VulnerabilityCVE-2026-22858cve-2026-228580%live
VulnerabilityCVE-2026-24404cve-2026-244040%live
VulnerabilityCVE-2026-24407cve-2026-244070%live
VulnerabilityCVE-2026-24409cve-2026-244090%live
VulnerabilityCVE-2026-24410cve-2026-244100%live
VulnerabilityCVE-2026-24411cve-2026-244110%live
VulnerabilityCVE-2026-4705cve-2026-47050%live
VulnerabilityCVE-2026-4718cve-2026-47180%live
VulnerabilityCVE-2026-4724cve-2026-47240%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CWE
Incorrect Provision of Specified Functionality
CWE
Improper Following of Specification by Caller
CWE
Use of Potentially Dangerous Function
CWE
Unchecked Return Value to NULL Pointer Dereference
CWE
Reliance on Untrusted Inputs in a Security Decision
CWE
Unchecked Error Condition
Sourced from MITRE CWE 4.20. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.