CVE-2026-34022 (GCVE-0-2026-34022)

Vulnerability from cvelistv5 – Published: 2026-06-15 10:02 – Updated: 2026-06-15 13:08
VLAI
Title
Weak custom cryptography and hard-coded keys in Wertheim SafeController 65000 allow traffic decryption
Summary
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.
Severity
7.1 (High)
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
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 13:08 UTC
CWE
  • CWE-321 - Use of hard-coded cryptographic key
Assigner
SEC-VLab CNA under the mitre root
CNA scorecard B 83/100 over 23 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Wertheim GmbH Wertheim SafeController Family 65000 Hardware for VAULT ROOMS (Safe Deposit Locker System - Microcontroller) Affected: Wertheim SafeController Family 65000, Controller 65000 - AssemblyVersion 6.11.8130.22319
guessed Create a notification for this product.
Credits
Gorazd Jank, SEC Consult Vulnerability Lab Christian Hager, SEC Consult Vulnerability Lab Philipp Espernberger, SEC Consult Vulnerability Lab
Show details on NVD website
To clipboard 

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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