Vulnerability-Lookup

CVE-2026-33617 (GCVE-0-2026-33617)

Vulnerability from cvelistv5 – Published: 2026-04-02 09:00 – Updated: 2026-04-03 17:21

Title

MB connect line mbCONNECT24 vulnerable to an unauthenticated information disclosure in the data24 Endpoint

Summary

An unauthenticated remote attacker can access a configuration file containing database credentials. This can result in a some loss of confidentiality, but there is no endpoint exposed to use these credentials.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-03 17:21 UTC

CWE

CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere

Assigner

CERTVDE icscert root

References

2 references

URL	Tags
https://certvde.com/de/advisories/VDE-2026-030	vendor-advisory
https://mbconnectline.csaf-tp.certvde.com/.well-k…	vendor-advisory

Impacted products

2 products

Vendor	Product	Version	CPE status
MB connect line	mbCONNECT24	Affected: 0.0.0 , ≤ 2.19.4 (semver)	guessed
MB connect line	mymbCONNECT24	Affected: 0.0.0 , ≤ 2.19.4 (semver)	guessed

Date Public

2026-04-02 09:00

Credits

Moritz Abrell, Christian Zäske from SySS GmbH

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-33617

Vulnerability from fkie_nvd - Published: 2026-04-02 10:16 - Updated: 2026-06-17 10:37

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

References

	URL	Tags
	info@cert.vde.com	https://certvde.com/de/advisories/VDE-2026-030	Third Party Advisory
	info@cert.vde.com	https://mbconnectline.csaf-tp.certvde.com/.well-known/csaf/white/2026/vde-2026-030.json	Vendor Advisory

Impacted products

	Vendor	Product	Version
	mbconnectline	mbconnect24	*
	mbconnectline	mymbconnect24	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "mbCONNECT24",
          "vendor": "MB connect line",
          "versions": [
            {
              "lessThanOrEqual": "2.19.4",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "mymbCONNECT24",
          "vendor": "MB connect line",
          "versions": [
            {
              "lessThanOrEqual": "2.19.4",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "info@cert.vde.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mbconnectline:mbconnect24:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FF88F461-51FB-482C-A406-07F72FC10D79",
              "versionEndIncluding": "2.19.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mbconnectline:mymbconnect24:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "36E8693F-94C4-46A4-BD83-D87B71B89F12",
              "versionEndIncluding": "2.19.4",
              "vulnerable": true
            }
          ],
          "negate": false,
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        }
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    }
  ],
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    }
  ],
  "id": "CVE-2026-33617",
  "lastModified": "2026-06-17T10:37:47.527",
  "metrics": {
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
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        "type": "Secondary"
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GHSA-X585-WRHM-2VX3

Vulnerability from github – Published: 2026-04-02 12:31 – Updated: 2026-04-02 12:31

Details

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-33617"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-497"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-02T10:16:17Z",
    "severity": "MODERATE"
  },
  "details": "An unauthenticated remote attacker can access a configuration file containing database credentials. This can result in a some loss of confidentiality, but there is no endpoint exposed to use these credentials.",
  "id": "GHSA-x585-wrhm-2vx3",
  "modified": "2026-04-02T12:31:05Z",
  "published": "2026-04-02T12:31:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33617"
    },
    {
      "type": "WEB",
      "url": "https://certvde.com/de/advisories/VDE-2026-030"
    },
    {
      "type": "WEB",
      "url": "https://mbconnectline.csaf-tp.certvde.com/.well-known/csaf/white/2026/vde-2026-030.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

VDE-2026-030

Vulnerability from csaf_mbconnectlinegmbh - Published: 2026-04-02 11:00 - Updated: 2026-04-02 11:00

Summary

MB connect line: Multiple Vulnerabilities in mbCONNECT24/mymbCONNECT24

Severity

Critical

Scope

5 vulnerabilities in this advisory, including CVE-2026-33617.

CVE-2026-33617

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Fixed: 2 products Known affected: 4 products

Open the full advisory

VDE-2026-043

Vulnerability from csaf_helmholzgmbhcokg - Published: 2026-04-13 11:00 - Updated: 2026-05-22 13:00

Summary

Helmholz: Multiple Vulnerabilities in myREX24V2/myREX24V2.virtual

Severity

Critical

Scope

5 vulnerabilities in this advisory, including CVE-2026-33617.

CVE-2026-33617

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Fixed: 2 products Known affected: 4 products

Open the full advisory

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-33617 (GCVE-0-2026-33617)

FKIE_CVE-2026-33617

GHSA-X585-WRHM-2VX3

VDE-2026-030

VDE-2026-043

Tags

Sightings

Nomenclature

Related by attack behaviour