VDE-2026-048

Vulnerability from csaf_vegagrieshaberkg - Published: 2026-05-04 06:00 - Updated: 2026-06-24 10:00
Summary
VEGA: Missing Authentication for critical function in VEGAPULS Bluetooth products
Severity
Medium
Notes
Summary: Vulnerable components expose sensitive information to unauthorized actors through an unsecured configuration interface. Vulnerable firmware releases contain an unsecured configuration interface that allows retrieval of sensitive information such as hashed credentials. It was found that users with no or low rights can access information from devices that should not be available to them. An attacker can use this information to impersonate authorized users.
Impact: An authenticated attacker with adjacent access can obtain sensitive information, potentially enabling authenticated device modification.
Mitigation: Implement access controls for physical interfaces to prevent unauthorized access.
Remediation: Update to the fixed firmware versions listed in this advisory. Rotate any credentials used on affected devices as they may have been compromised. Contact VEGA Support if emergency code rotation is necessary based on your risk assessment. Fixed version: * Firmware 1.2.3 installed on VEGAPULS 11 with Bluetooth * Firmware 1.2.3 installed on VEGAPULS C 11 with Bluetooth * Firmware 1.3.2 installed on VEGAPULS C 21 Three-wire SDI12 * Firmware 1.3.2 installed on VEGAPULS C 22 Three-wire SDI12 * Firmware 1.3.2 installed on VEGAPULS C 23 Three-wire SDI12
General Recommendation: Implement access controls for physical interfaces to prevent unauthorized access.
CVE-2026-3323

An unsecured configuration interface on the affected devices allows an authenticated attacker with adjacent access (with Bluetooth) to gain sensitive information like hashed credentials and access codes.

5.7 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-306 - Missing Authentication for Critical Function
Affected products
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32001 —
Unresolved product id: CSAFPID-32002 —
Unresolved product id: CSAFPID-32003 —
Unresolved product id: CSAFPID-32004 —
Unresolved product id: CSAFPID-32005 —
Product Identifier Version Remediation
Unresolved product id: CSAFPID-31001 —
Mitigation
Vendor Fix fix
Unresolved product id: CSAFPID-31002 —
Mitigation
Vendor Fix fix
Unresolved product id: CSAFPID-31003 —
Mitigation
Vendor Fix fix
Unresolved product id: CSAFPID-31004 —
Mitigation
Vendor Fix fix
Unresolved product id: CSAFPID-31005 —
Mitigation
Vendor Fix fix
CVE-2026-3323 Reference Score
VEGA Grieshaber KG / Firmware
 —
References
Acknowledgments
CERT@VDE certvde.com
Product Security Unit at VEGA Grieshaber KG www.vega.com
To clipboard 

{
  "document": {
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        "summary": "coordination",
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        "organization": "Product Security Unit at VEGA Grieshaber KG",
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        "text": "Vulnerable components expose sensitive information to unauthorized actors through an unsecured configuration interface. Vulnerable firmware releases contain an unsecured configuration interface that allows retrieval of sensitive information such as hashed credentials.\n\nIt was found that users with no or low rights can access information from devices that should not be available to them.\n\nAn attacker can use this information to impersonate authorized users.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "An authenticated attacker with adjacent access can obtain sensitive information, potentially enabling authenticated device modification.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Implement access controls for physical interfaces to prevent unauthorized access.",
        "title": "Mitigation"
      },
      {
        "category": "description",
        "text": "Update to the fixed firmware versions listed in this advisory. Rotate any credentials used on affected devices as they may have been compromised. Contact VEGA Support if emergency code rotation is necessary based on your risk assessment.\n\nFixed version:\n\n* Firmware 1.2.3 installed on VEGAPULS 11 with Bluetooth\n* Firmware 1.2.3 installed on VEGAPULS C 11 with Bluetooth\n* Firmware 1.3.2 installed on VEGAPULS C 21 Three-wire SDI12\n* Firmware 1.3.2 installed on VEGAPULS C 22 Three-wire SDI12\n* Firmware 1.3.2 installed on VEGAPULS C 23 Three-wire SDI12",
        "title": "Remediation"
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      },
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                  },
                  {
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                ],
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              },
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                "name": "VEGAPULS C 23 Three-wire SDI12"
              },
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    ],
    "relationships": [
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      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 1.2.3 installed on VEGAPULS 11 with Bluetooth",
          "product_id": "CSAFPID-32001",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:vega:vegapuls11_bt_firmware:1.2.3:*:*:*:*:*:*:*",
            "model_numbers": [
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            ]
          }
        },
        "product_reference": "CSAFPID-22001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c 1.2.3 installed on VEGAPULS C 11 with Bluetooth",
          "product_id": "CSAFPID-31002",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:vega:vegapulsc11_bt_firmware:*:*:*:*:*:*:*:*",
            "model_numbers": [
              "PSC11.?B"
            ]
          }
        },
        "product_reference": "CSAFPID-21002",
        "relates_to_product_reference": "CSAFPID-11002"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 1.2.3 installed on VEGAPULS C 11 with Bluetooth",
          "product_id": "CSAFPID-32002",
          "product_identification_helper": {
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            ]
          }
        },
        "product_reference": "CSAFPID-22002",
        "relates_to_product_reference": "CSAFPID-11002"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c 1.3.2 installed on VEGAPULS C 21 Three-wire SDI12",
          "product_id": "CSAFPID-31003",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:vega:vegapulsc21_sdi12_firmware:*:*:*:*:*:*:*:*",
            "model_numbers": [
              "PSC21.???????S?"
            ]
          }
        },
        "product_reference": "CSAFPID-21003",
        "relates_to_product_reference": "CSAFPID-11003"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 1.3.2 installed on VEGAPULS C 21 Three-wire SDI12",
          "product_id": "CSAFPID-32003",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:vega:vegapulsc21_sdi12_firmware:1.3.2:*:*:*:*:*:*:*",
            "model_numbers": [
              "PSC21.???????S?"
            ]
          }
        },
        "product_reference": "CSAFPID-22003",
        "relates_to_product_reference": "CSAFPID-11003"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c 1.3.2 installed on VEGAPULS C 22 Three-wire SDI12",
          "product_id": "CSAFPID-31004",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:vega:vegapulsc22_sdi12_firmware:*:*:*:*:*:*:*:*",
            "model_numbers": [
              "PSC22.???????S?"
            ]
          }
        },
        "product_reference": "CSAFPID-21004",
        "relates_to_product_reference": "CSAFPID-11004"
      },
      {
        "category": "installed_on",
        "full_product_name": {
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            "model_numbers": [
              "PSC22.???????S?"
            ]
          }
        },
        "product_reference": "CSAFPID-22004",
        "relates_to_product_reference": "CSAFPID-11004"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c 1.3.2 installed on VEGAPULS C 23 Three-wire SDI12",
          "product_id": "CSAFPID-31005",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:vega:vegapulsc23_sdi12_firmware:*:*:*:*:*:*:*:*",
            "model_numbers": [
              "PSC23.???????S?"
            ]
          }
        },
        "product_reference": "CSAFPID-21005",
        "relates_to_product_reference": "CSAFPID-11005"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 1.3.2 installed on VEGAPULS C 23 Three-wire SDI12",
          "product_id": "CSAFPID-32005",
          "product_identification_helper": {
            "cpe": "cpe:2.3:o:vega:vegapulsc23_sdi12_firmware:1.3.2:*:*:*:*:*:*:*",
            "model_numbers": [
              "PSC23.???????S?"
            ]
          }
        },
        "product_reference": "CSAFPID-22005",
        "relates_to_product_reference": "CSAFPID-11005"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-3323",
      "cwe": {
        "id": "CWE-306",
        "name": "Missing Authentication for Critical Function"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "An unsecured configuration interface on the affected devices allows an authenticated attacker with adjacent access (with Bluetooth) to gain sensitive information like hashed credentials and access codes.",
          "title": "CVE Description"
        },
        {
          "category": "details",
          "text": "Due to different bus and network interfaces the affected products have different CVSS vectors. Please see the scores listed in the CSAF for details.",
          "title": "Vulnerability details"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-32001",
          "CSAFPID-32002",
          "CSAFPID-32003",
          "CSAFPID-32004",
          "CSAFPID-32005"
        ],
        "known_affected": [
          "CSAFPID-31001",
          "CSAFPID-31002",
          "CSAFPID-31003",
          "CSAFPID-31004",
          "CSAFPID-31005",
          "CSAFPID-0002"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
          "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Implement access control to physical interfaces to prevent unauthorized access.",
          "product_ids": [
            "CSAFPID-31001",
            "CSAFPID-31002",
            "CSAFPID-31003",
            "CSAFPID-31004",
            "CSAFPID-31005"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to fixed firmware versions listed in this advisory.\n\nRotate any credentials that were used on the affected devices as they may have been compromised.\n\nContact VEGA Support if rotating emergency codes is necessary based on your risk assessment.",
          "product_ids": [
            "CSAFPID-31001",
            "CSAFPID-31002",
            "CSAFPID-31003",
            "CSAFPID-31004",
            "CSAFPID-31005"
          ],
          "restart_required": {
            "category": "vulnerable_component",
            "details": "A restart of the vulnerable component is required after applying the firmware update."
          },
          "url": "https://www.vega.com/en-us/downloads"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 5.7,
            "environmentalSeverity": "MEDIUM",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "temporalScore": 5.7,
            "temporalSeverity": "MEDIUM",
            "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-31001",
            "CSAFPID-31002",
            "CSAFPID-31003",
            "CSAFPID-31004",
            "CSAFPID-31005"
          ]
        },
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 7.5,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0002"
          ]
        }
      ],
      "title": "Privilege escalation through unsecured configuration interface"
    }
  ]
}



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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.