Vulnerability · Published Jun 15, 2026 · Assigned by SEC-VLab
CVE-2026-34022Weak custom cryptography and hard-coded keys in Wertheim SafeController 65000 allow traffic decryption
High 7.1
In plain English
A high-severity security flaw in Wertheim SafeController Family 65000 Hardware for VAULT ROOMS (Safe Deposit Locker System - Microcontroller) from Wertheim GmbH. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Official description
The Wertheim SafeController Family 65000, Controller 65000 - AssemblyVersion 6.11.8130.22319, uses weak custom cryptographic algorithms with hard-coded cryptographic keys to protect communication. An attacker in an adversary-in-the-middle position can decrypt the data traffic. During reassessment, it was possible to break the encryption/decryption routine and decrypt messages without knowledge of the encryption key. It was also possible to gain knowledge about the encryption key by intercepting enough messages.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Wertheim GmbH | Wertheim SafeController Family 65000 Hardware for VAULT ROOMS (Safe Deposit Locker System - Microcontroller) | Wertheim SafeController Family 65000, Controller 65000 - AssemblyVersion 6.11.8130.22319 |
Weakness: CWE-321 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N