Vulnerability-Lookup

CVE-2026-8046 (GCVE-0-2026-8046)

Vulnerability from cvelistv5 – Published: 2026-05-26 06:45 – Updated: 2026-05-26 10:48

Title

Incorrect Authorization in CODESYS Control

Summary

The affected products insufficiently verify authorization when deleting user accounts. An authenticated, low-privileged remote user can exploit this vulnerability to delete other users, including those with higher privileges.

Severity

7.2 (High)


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

8.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-26 10:44 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

CERTVDE icscert root

References

1 reference

URL	Tags
https://www.certvde.com/en/advisories/VDE-2026-056/

Impacted products

16 products

Vendor	Product	Version	CPE status
CODESYS	CODESYS Control RTE (SL)	Affected: 3.0.0.0 , < 3.5.22.20 (semver)	guessed
CODESYS	CODESYS Control RTE (for Beckhoff CX) SL	Affected: 3.0.0.0 , < 3.5.22.20 (semver)	guessed
CODESYS	CODESYS Control Win (SL)	Affected: 3.0.0.0 , < 3.5.22.20 (semver)	guessed
CODESYS	CODESYS HMI (SL)	Affected: 3.0.0.0 , < 3.5.22.20 (semver)	guessed
CODESYS	CODESYS Runtime Toolkit	Affected: 3.0.0.0 , < 3.5.22.20 (semver)	guessed
CODESYS	CODESYS Control for BeagleBone SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for emPC-A/iMX6 SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for IOT2000 SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for Linux ARM SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for Linux SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for PFC100 SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for PFC200 SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for PLCnext SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for Raspberry Pi SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Control for WAGO Touch Panels 600 SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed
CODESYS	CODESYS Virtual Control SL	Affected: 3.0.0.0 , < 4.21.0.0 (semver)	guessed

Credits

ABB AG

Show details on NVD website

JSON

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      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
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ADVISORY2026-08_VDE-2026-056

Vulnerability from csaf_codesysgmbh - Published: 2026-05-26 10:00 - Updated: 2026-06-18 10:00

Summary

CODESYS Control - Incorrect Authorization

Severity

High

Scope

1 vulnerability in this advisory, including CVE-2026-8046.

CVE-2026-8046

8.1 (High)


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

Fixed: 16 products Known affected: 16 products

Open the full advisory

FKIE_CVE-2026-8046

Vulnerability from fkie_nvd - Published: 2026-05-26 08:16 - Updated: 2026-07-23 11:10

Severity

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

Summary

References

	URL	Tags
	info@cert.vde.com	https://www.certvde.com/en/advisories/VDE-2026-056/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
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          "defaultStatus": "unaffected",
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          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control RTE (for Beckhoff CX) SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "3.5.22.20",
              "status": "affected",
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              "versionType": "semver"
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          ]
        },
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          "defaultStatus": "unaffected",
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          "versions": [
            {
              "lessThan": "3.5.22.20",
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        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for BeagleBone SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for emPC-A/iMX6 SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for IOT2000 SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for Linux ARM SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for Linux SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for PFC100 SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for PFC200 SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for PLCnext SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for Raspberry Pi SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Control for WAGO Touch Panels 600 SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "CODESYS Virtual Control SL",
          "vendor": "CODESYS",
          "versions": [
            {
              "lessThan": "4.21.0.0",
              "status": "affected",
              "version": "3.0.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "info@cert.vde.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The affected products insufficiently verify authorization when deleting user accounts. An authenticated, low-privileged remote user can exploit this vulnerability to delete other users, including those with higher privileges."
    },
    {
      "lang": "es",
      "value": "Los productos afectados verifican insuficientemente la autorizaci\u00f3n al eliminar cuentas de usuario. Un usuario remoto autenticado y con pocos privilegios puede explotar esta vulnerabilidad para eliminar a otros usuarios, incluyendo a aquellos con privilegios superiores."
    }
  ],
  "id": "CVE-2026-8046",
  "lastModified": "2026-07-23T11:10:00.120",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "info@cert.vde.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "info@cert.vde.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-8046",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-26T10:44:58.318097Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-26T08:16:22.267",
  "references": [
    {
      "source": "info@cert.vde.com",
      "url": "https://www.certvde.com/en/advisories/VDE-2026-056/"
    }
  ],
  "sourceIdentifier": "info@cert.vde.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "info@cert.vde.com",
      "type": "Secondary"
    }
  ]
}

GHSA-H6MV-MGPJ-6795

Vulnerability from github – Published: 2026-05-26 13:30 – Updated: 2026-05-26 13:30

Details

Severity

8.1 (High)


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

7.2 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-8046"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-26T08:16:22Z",
    "severity": "HIGH"
  },
  "details": "The affected products insufficiently verify authorization when deleting user accounts. An authenticated, low-privileged remote user can exploit this vulnerability to delete other users, including those with higher privileges.",
  "id": "GHSA-h6mv-mgpj-6795",
  "modified": "2026-05-26T13:30:55Z",
  "published": "2026-05-26T13:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8046"
    },
    {
      "type": "WEB",
      "url": "https://www.certvde.com/en/advisories/VDE-2026-056"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/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"
    }
  ]
}

WID-SEC-W-2026-1675

Vulnerability from csaf_certbund - Published: 2026-05-25 22:00 - Updated: 2026-05-26 22:00

Summary

CODESYS: Mehrere Schwachstellen

Severity

Hoch

Scope

4 vulnerabilities in this advisory, including CVE-2026-8046.

CVE-2026-8046

Known affected: 2 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-2026-8046 (GCVE-0-2026-8046)

ADVISORY2026-08_VDE-2026-056

FKIE_CVE-2026-8046

GHSA-H6MV-MGPJ-6795

WID-SEC-W-2026-1675

Tags

Sightings

Nomenclature

Related by attack behaviour