Cyber Resilience

CWE · MITRE source

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

Abstraction: Class · CVEs in our corpus: 27

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.

Last updated: 20 August 2026 13:14 UTC

Control responseHuman-reviewed

Answering this weakness across the control lifecycle, from our framework cross-walks.

Prevent
Stop it (NIST 800-53 / CSF Protect)
  • PR.PS-06
  • SA-11 Developer Testing and Evaluation
  • PR.PS-01
  • SA-8 Security and Privacy Engineering Principles
Detect
Catch it (CSF Detect / Respond)

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Harden
Shrink the surface (DISA STIG)

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Validate
Prove the fix (OWASP ASVS)

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NIST 800-53 r5 controls that address this weakness (0)AI-assisted

Control Title Family Why it addresses this CWE
No NIST controls proposed yet.

Top CVEs of this weakness type, ranked by Risk Priority

CVE Risk CVSS EPSS Published
CVE-2026-4705 7.39.80.00422026-03-24
CVE-2026-22858 6.99.10.00612026-01-14
CVE-2026-4724 6.89.10.00322026-03-24
CVE-2026-16441 6.69.60.00292026-07-21
CVE-2026-216776.58.80.00312026-01-06
CVE-2026-4718 6.08.10.00302026-03-24
CVE-2026-244045.47.10.00402026-01-24
CVE-2026-244075.47.10.00402026-01-24
CVE-2026-244095.47.10.00312026-01-24
CVE-2026-244105.47.10.00312026-01-24
CVE-2026-244115.47.10.00312026-01-24
CVE-2026-216845.37.10.00252026-01-07
CVE-2026-216855.37.10.00252026-01-07
CVE-2026-216865.37.10.00252026-01-07
CVE-2026-216875.37.10.00252026-01-07
CVE-2024-4774 5.16.50.00372024-05-14
CVE-2025-54811 5.07.10.00202025-10-01
CVE-2025-55160 4.86.10.00412025-08-13
CVE-2026-34549 4.76.20.00162026-03-31
CVE-2026-34533 4.66.20.00162026-03-31
CVE-2026-34537 4.66.20.00162026-03-31
CVE-2026-34547 4.66.20.00162026-03-31
CVE-2026-28528 3.64.60.00142026-03-30
CVE-2023-30624 3.43.90.00452023-04-27
CVE-2026-402793.23.70.00242026-04-21