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 (v2.0.3)
CWE
  • CWE-321 - Use of hard-coded cryptographic key
Assigner
References
Impacted products
Vendor Product Version
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
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 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34022",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-15T13:08:13.768516Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-15T13:08:17.437Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-wertheim-safecontroller-hardware-for-vault-rooms-safe-deposit-locker-system-microcontroller/"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Wertheim SafeController Family 65000 Hardware for VAULT ROOMS (Safe Deposit Locker System - Microcontroller)",
          "vendor": "Wertheim GmbH",
          "versions": [
            {
              "status": "affected",
              "version": "Wertheim SafeController Family 65000, Controller 65000 - AssemblyVersion 6.11.8130.22319"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Gorazd Jank, SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Christian Hager, SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Philipp Espernberger, SEC Consult Vulnerability Lab"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The\u0026nbsp;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."
            }
          ],
          "value": "The\u00a0Wertheim 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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-97",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-97 Cryptanalysis"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-321",
              "description": "CWE-321 Use of hard-coded cryptographic key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-15T10:02:33.252Z",
        "orgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
        "shortName": "SEC-VLab"
      },
      "references": [
        {
          "tags": [
            "product"
          ],
          "url": "https://wertheim-safes.com/safe-deposit-boxes/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://r.sec-consult.com/wertdev"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "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."
            }
          ],
          "value": "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."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Weak custom cryptography and hard-coded keys in Wertheim SafeController 65000 allow traffic decryption",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "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."
            }
          ],
          "value": "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."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
    "assignerShortName": "SEC-VLab",
    "cveId": "CVE-2026-34022",
    "datePublished": "2026-06-15T10:02:33.252Z",
    "dateReserved": "2026-03-25T10:46:45.515Z",
    "dateUpdated": "2026-06-15T13:08:17.437Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-34022",
      "date": "2026-06-16",
      "epss": "0.00116",
      "percentile": "0.01922"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-34022\",\"sourceIdentifier\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\",\"published\":\"2026-06-15T12:16:24.410\",\"lastModified\":\"2026-06-15T21:05:18.653\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The\u00a0Wertheim 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.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"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\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-321\"}]}],\"references\":[{\"url\":\"https://r.sec-consult.com/wertdev\",\"source\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\"},{\"url\":\"https://wertheim-safes.com/safe-deposit-boxes/\",\"source\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\"},{\"url\":\"https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-wertheim-safecontroller-hardware-for-vault-rooms-safe-deposit-locker-system-microcontroller/\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-34022\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-15T13:08:13.768516Z\"}}}], \"references\": [{\"url\": \"https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-wertheim-safecontroller-hardware-for-vault-rooms-safe-deposit-locker-system-microcontroller/\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-15T13:08:03.596Z\"}}], \"cna\": {\"title\": \"Weak custom cryptography and hard-coded keys in Wertheim SafeController 65000 allow traffic decryption\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Gorazd Jank, SEC Consult Vulnerability Lab\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Christian Hager, SEC Consult Vulnerability Lab\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Philipp Espernberger, SEC Consult Vulnerability Lab\"}], \"impacts\": [{\"capecId\": \"CAPEC-97\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-97 Cryptanalysis\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 7.1, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"ADJACENT\", \"baseSeverity\": \"HIGH\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"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\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Wertheim GmbH\", \"product\": \"Wertheim SafeController Family 65000 Hardware for VAULT ROOMS (Safe Deposit Locker System - Microcontroller)\", \"versions\": [{\"status\": \"affected\", \"version\": \"Wertheim SafeController Family 65000, Controller 65000 - AssemblyVersion 6.11.8130.22319\"}], \"defaultStatus\": \"unknown\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"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.\", \"base64\": false}]}], \"references\": [{\"url\": \"https://wertheim-safes.com/safe-deposit-boxes/\", \"tags\": [\"product\"]}, {\"url\": \"https://r.sec-consult.com/wertdev\", \"tags\": [\"third-party-advisory\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"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.\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.2\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"The\\u00a0Wertheim 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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"The\u0026nbsp;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.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-321\", \"description\": \"CWE-321 Use of hard-coded cryptographic key\"}]}], \"providerMetadata\": {\"orgId\": \"551230f0-3615-47bd-b7cc-93e92e730bbf\", \"shortName\": \"SEC-VLab\", \"dateUpdated\": \"2026-06-15T10:02:33.252Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-34022\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-15T13:08:17.437Z\", \"dateReserved\": \"2026-03-25T10:46:45.515Z\", \"assignerOrgId\": \"551230f0-3615-47bd-b7cc-93e92e730bbf\", \"datePublished\": \"2026-06-15T10:02:33.252Z\", \"assignerShortName\": \"SEC-VLab\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.