CWE-1394: Use of Default Cryptographic Key
The product uses a default cryptographic key for potentially critical functionality.
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Overview
It is common practice for products to be designed to use default keys. The rationale is to simplify the manufacturing process or the system administrator's task of installation and deployment into an enterprise. However, if admins do not change the defaults, it is easier for attackers to bypass authentication quickly across multiple organizations.
Real-world CVEs
16 recorded CVEs are caused by CWE-1394 (Use of Default Cryptographic Key). The highest-severity and most recent are shown first. 4 new CWE-1394 CVEs have been recorded so far in 2026 (6 in 2025).
- CVE-2025-41742
Sprecher Automation: SPRECON-E series has a critical vulnerability due to the use of static cryptographic keys in system components
Critical · CVSS 9.82025-12-02 - CVE-2024-48956Critical · CVSS 9.82024-12-09
- CVE-2025-41744
Sprecher Automation: SPRECON-E series has static default key material for TLS connections