CWE-636: Not Failing Securely ('Failing Open')

low-risk

When the product encounters an error condition or failure, its design requires it to fall back to a state that is less secure than other options that are available, such as selecting the weakest encryption algorithm or using the most permissive access control restrictions.

Abstraction: Class

Common Consequences

Access Control Bypass Protection Mechanism

Real-World Examples (10)

CVE CVSS EPSS KEV
CVE-2024-43532 8.8 61.4%
CVE-2023-28841 6.8 3.1%
CVE-2021-1578 8.8 1.0%
CVE-2024-8185 7.5 0.8%
CVE-2023-28842 6.8 0.6%
CVE-2024-2660 6.4 0.6%
CVE-2024-3729 9.8 0.6%
CVE-2023-28840 7.5 0.5%
CVE-2023-22943 4.8 0.3%
CVE-2025-21210 4.2 0.2%
2
/ 100
low-risk
Active Threat 2/50 · Minimal
Exploit Availability 0/50 · Minimal