CVE-2022-41648 (GCVE-0-2022-41648)

Vulnerability from cvelistv5 – Published: 2022-10-28 17:09 – Updated: 2025-10-13 12:09
VLAI
Summary
The HEIDENHAIN Controller TNC 640 NC software Version 340590 07 SP5, is vulnerable to improper authentication in its DNC communication for CNC machines. Authentication is not enabled by default for DNC communication. This vulnerability may allow an attacker to deny service on the production line, steal sensitive data from the production line, and alter any products created by the production line. Note: CNC machines running the TNC 640 controller require DNC to be enabled for DNC communication to be present.
Severity
9.2 (Critical)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-16 17:26 UTC
CWE
  • CWE-1188 - Insecure Default Initialization of Resource
Assigner
icscert CNA under the icscert root
CNA scorecard B 75/100 over 352 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
HEIDENHAIN HEIDENHAIN Controller TNC 640 NC Software Affected: 340590 07 SP5
guessed Create a notification for this product.
Credits
Marco Balduzzi
Show details on NVD website
To clipboard 

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              "value": "HEIDENHAIN has identified the following specific workarounds and mitigations users can apply to reduce risk:\n\n  *  Block LSV2 and DNC communication using the integrated firewall in the controller\u0027s operating system.\n  *  Use zone firewalls to isolate and segment the network of the affected devices.\n  *  Ask machinery vendor (running HEIDENHAIN controllers) for updates to a recent software version, where SSH tunneling is standard."
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 0.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "assignerShortName": "icscert",
        "cveId": "CVE-2022-41648",
        "datePublished": "2022-10-28T17:09:41.162Z",
        "dateReserved": "2022-09-29T00:00:00.000Z",
        "dateUpdated": "2025-10-13T12:09:37.939Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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