CVE-2026-34022
Weak custom cryptography and hard-coded keys in Wertheim SafeController 65000 allow traffic decryption
- Published
- Updated
- Reserved
- Assigned by
- SEC-VLab
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| SEC-VLabCNA (assigner) | 4.0 | High7.1 | 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 |
| NVDNVD · Deferred | 4.0 | High7.1 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.12% · top 98% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Weakness
Affected products
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
What to do
Solution: No fix is available for this issue. The vendor stated that the encryption algorithm for Controller 65000 cannot be improved or fixed because of missing hardware support. Affected parties should assess the business risk and switch to a supported version if unsupported products are in use.
Workaround: Physically isolate all SafeController devices so that only authorized personnel can access them. Harden all connected systems that communicate with the controller, disable unnecessary services, and restrict access to authorized personnel only. Ensure that servers communicating with SafeController devices use strong, unique authentication credentials and are not accessible to unauthorized users. Maintain physical security of all interconnected components to prevent unauthorized access or tampering.
References (3)
- https://wertheim-safes.com/safe-deposit-boxes/ (opens in a new tab)product
- https://r.sec-consult.com/wertdev (opens in a new tab)third-party-advisory
- https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-wertheim-safecontroller-hardware-for-vault-rooms-safe-deposit-locker-system-microcontroller/ (opens in a new tab)exploit
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-34022)Record last updated .