Vulnerability-Lookup

CVE-2026-86212 (GCVE-0-2026-86212)

Vulnerability from cvelistv5 – Published: 2026-09-06 11:15 – Updated: 2026-09-11 20:36 X_Open Source

Title

Open5GS AMF/MME improper authorization

Summary

A vulnerability has been found in Open5GS 2.7.7/2.8.0. This vulnerability affects unknown code of the component AMF/MME. The manipulation leads to improper authorization. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 9468de94caed2fc940f4a23cbf734651896d0fde. To fix this issue, it is recommended to deploy a patch.

Severity

5.3 (Medium)


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

4.3 (Medium)


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

4.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-11 20:04 UTC

CWE

CWE-285 - Improper Authorization
CWE-266 - Incorrect Privilege Assignment

Assigner

VulDB mitre root

References

7 references

URL	Tags
https://vuldb.com/vuln/399348	vdb-entry
https://vuldb.com/vuln/399348/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-86212	third-party-advisory
https://vuldb.com/submit/896623	third-party-advisory
https://github.com/open5gs/open5gs/issues/4680	exploitissue-tracking
https://github.com/open5gs/open5gs/commit/9468de9…	patch
https://github.com/open5gs/open5gs/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	Open5GS	Affected: 2.7.7 Affected: 2.8.0 cpe:2.3:a:open5gs:open5gs::::::::

Credits

dwxll (VulDB User)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-86212

Vulnerability from fkie_nvd - Published: 2026-09-06 12:17 - Updated: 2026-09-11 21:17

Severity

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

Summary

References

	URL	Tags
	cna@vuldb.com	https://github.com/open5gs/open5gs/
	cna@vuldb.com	https://github.com/open5gs/open5gs/commit/9468de94caed2fc940f4a23cbf734651896d0fde
	cna@vuldb.com	https://github.com/open5gs/open5gs/issues/4680
	cna@vuldb.com	https://vuldb.com/cve/CVE-2026-86212
	cna@vuldb.com	https://vuldb.com/submit/896623
	cna@vuldb.com	https://vuldb.com/vuln/399348
	cna@vuldb.com	https://vuldb.com/vuln/399348/cti

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"
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  ],
  "id": "CVE-2026-86212",
  "lastModified": "2026-09-11T21:17:37.160",
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        "impactScore": 2.9,
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        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
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          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.1,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "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:N/VA:L/SC:N/SI:N/SA:N/E:P/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": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-86212",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-11T20:04:57.823872Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-06T12:17:15.423",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/open5gs/open5gs/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/open5gs/open5gs/commit/9468de94caed2fc940f4a23cbf734651896d0fde"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/open5gs/open5gs/issues/4680"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-86212"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/896623"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/399348"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/399348/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-266"
        },
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-HMQ7-PG9J-QVF9

Vulnerability from github – Published: 2026-09-06 12:30 – Updated: 2026-09-06 12:30

Details

Severity

4.3 (Medium)


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

2.1 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-86212"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-266"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-06T12:17:15Z",
    "severity": "LOW"
  },
  "details": "A vulnerability has been found in Open5GS 2.7.7/2.8.0. This vulnerability affects unknown code of the component AMF/MME. The manipulation leads to improper authorization. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 9468de94caed2fc940f4a23cbf734651896d0fde. To fix this issue, it is recommended to deploy a patch.",
  "id": "GHSA-hmq7-pg9j-qvf9",
  "modified": "2026-09-06T12:30:23Z",
  "published": "2026-09-06T12:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86212"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open5gs/open5gs/issues/4680"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open5gs/open5gs/commit/9468de94caed2fc940f4a23cbf734651896d0fde"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open5gs/open5gs"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-86212"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/896623"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/399348"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/399348/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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"
    }
  ]
}

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-2026-86212 (GCVE-0-2026-86212)

FKIE_CVE-2026-86212

GHSA-HMQ7-PG9J-QVF9

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Related by attack behaviour