Vulnerability-Lookup

CVE-2026-6900 (GCVE-0-2026-6900)

Vulnerability from cvelistv5 – Published: 2026-07-06 09:53 – Updated: 2026-07-06 18:49

Title

Improper Certificate Validation

Summary

Improper certificate validation vulnerability in B&R Industrial Automation GmbH APROL. This issue affects APROL: before R 4.4-01P5.

Severity

7.4 (High)


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

9.1 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-06 18:49 UTC

CWE

CWE-295 - Improper certificate validation

Assigner

ABB icscert root

References

1 reference

URL	Tags
https://br-cws-assets.de-fra-1.linodeobjects.com/…

Impacted products

1 product

Vendor	Product	Version	CPE status
B&R Industrial Automation GmbH	APROL	Affected: 0 , < R 4.4-01P5 (custom)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-6900

Vulnerability from fkie_nvd - Published: 2026-07-06 11:16 - Updated: 2026-07-06 19:35

Severity

7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Summary

Improper certificate validation vulnerability in B&R Industrial Automation GmbH APROL. This issue affects APROL: before R 4.4-01P5.

References

	URL	Tags
	cybersecurity@ch.abb.com	https://br-cws-assets.de-fra-1.linodeobjects.com/SA26P011-661853b7.pdf

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "APROL",
          "vendor": "B\u0026R Industrial Automation GmbH",
          "versions": [
            {
              "lessThan": "R 4.4-01P5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
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    }
  ],
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    }
  ],
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GHSA-4Q88-82VM-7283

Vulnerability from github – Published: 2026-07-06 12:31 – Updated: 2026-07-06 12:31

Details

Improper certificate validation vulnerability in B&R Industrial Automation GmbH APROL.

This issue affects APROL: before R 4.4-01P5.

Severity

7.4 (High)


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

9.1 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-6900"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-06T11:16:31Z",
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  },
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  "id": "GHSA-4q88-82vm-7283",
  "modified": "2026-07-06T12:31:31Z",
  "published": "2026-07-06T12:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6900"
    },
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      "type": "WEB",
      "url": "https://br-cws-assets.de-fra-1.linodeobjects.com/SA26P011-661853b7.pdf"
    }
  ],
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    },
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      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/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",
      "type": "CVSS_V4"
    }
  ]
}

SA26P011

Vulnerability from csaf_abb - Published: 2026-07-06 00:30 - Updated: 2026-07-06 00:30

Summary

Security Issues addressed in APROL R 4.4-01P5

Scope

6 vulnerabilities in this advisory, including CVE-2026-6900.

CVE-2026-6900

An Improper Certificate Validation vulnerability in the LDAP Server Connector used in APROL version prior to R 4.4-01P5 may allow network-based attackers to conduct adversary -in-the-middle attacks causing information disclosure or identity spoofing.

7.4 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:H/RL:O/RC:C

Fixed: 1 product Known affected: 1 product

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-2026-6900 (GCVE-0-2026-6900)

FKIE_CVE-2026-6900

GHSA-4Q88-82VM-7283

SA26P011

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Related by attack behaviour