Vulnerability-Lookup

CVE-2026-19586 (GCVE-0-2026-19586)

Vulnerability from cvelistv5 – Published: 2026-08-20 18:32 – Updated: 2026-08-21 03:56

Title

Pre-Authentication OS Command Injection in Omada Gateways on OpenVPN Server in Omada Gateways

Summary

A pre-authentication OS command injection vulnerability has been identified in Omada gateways configured to operate as an OpenVPN Server due to insufficient validation of client-supplied data during OpenVPN connection establishment. An unauthenticated remote attacker may provide specially crafted input influencing backend command execution logic before authentication completes. Exploitation requires the OpenVPN Server feature to be enabled, VPN service reachable by the attacker and attacker to be able to initiate an OpenVPN connection attempt. Successful exploitation may allow arbitrary command execution, potentially leading to full compromise of the affected device.

Severity

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-20 00:00 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

TPLink mitre root

References

3 references

URL	Tags
https://www.omadanetworks.com/en/support/download/	patch
https://www.omadanetworks.com/us/support/download/	patch
https://www.tp-link.com/us/support/faq/5256/	vendor-advisory

Impacted products

19 products

Vendor	Product	Version	CPE status
TP-Link Systems Inc.	ER7212PC v2	Affected: 0 , < 2.4.3 Build 20260722 Rel.40250 (custom)	guessed
TP-Link Systems Inc.	ER605 v2	Affected: 0 , < 2.4.4 Build 20260630 Rel.14398 (custom)	guessed
TP-Link Systems Inc.	ER7206 v2	Affected: 0 , < 2.3.5 Build 20260625 Rel.43136 (custom)	guessed
TP-Link Systems Inc	ER7406 v1	Affected: 0 , < 1.3.4 Build 20260625 Rel.43136 (custom)	guessed
TP-Link Systems Inc.	ER707-M2 v1	Affected: 0 , < 1.4.4 Build 20260625 Rel.43063 (custom)	guessed
TP-Link Systems Inc	ER7412-M2 v1	Affected: 0 , < 1.2.0 Build 20260630 Rel.82947 (custom)	guessed
TP-Link Systems Inc.	ER8411 v1	Affected: 0 , < 1.4.1 Build 20260708 Rel.64832 (custom)	guessed
TP-Link Systems Inc.	ER706W v1	Affected: 0 , < 1.2.11 Build 20260723 Rel.41567 (custom)	guessed
TP-Link Systems Inc.	v1	Affected: 0 , < 1.2.6 Build 20260723 Rel.41321 (custom)	guessed
TP-Link Systems Inc.	ER706W-4G v2	Affected: 0 , < 2.1.11 Build 20260723 Rel.41624 (custom)	guessed
TP-Link Systems Inc.	ER706WP-4G v1	Affected: 0 , < 1.1.11 Build 20260723 Rel.41624 (custom)	guessed
TP-Link Systems Inc.	ER703WP-4G-Outdoor v1	Affected: 0 , < 1.1.7 Build 20260723 Rel.41712 (custom)	guessed
TP-Link Systems Inc.	DR3220v-4G v1	Affected: 0 , < 1.2.0 Build 20260630 Rel.82652 (custom)	guessed
TP-Link Systems Inc.	DR3650v v1	Affected: 0 , < 1.2.0 Build 20260630 Rel.83311 (custom)	guessed
TP-Link Systems Inc.	DR3650v-4G v1	Affected: 0 , < 1.2.0 Build 20260630 Rel.83347 (custom)	guessed
TP-Link Systems Inc.	ER603WP-4G-Outdoor v1	Affected: 0 , < 1.0.2 Build 20260723 Rel.43271 (custom)	guessed
TP-Link Systems Inc.	DR3150 v1	Affected: 0 , < 1.0.1 Build 20260722 Rel.16854 (custom)	guessed
TP-Link Systems Inc.	ER701-5G-Outdoor v1	Affected: 0 , < 1.0.3 Build 20260723 Rel.40931 (custom)	guessed
TP-Link Systems Inc.	ER605W v2	Affected: 0 , < 2.0.4 Build 20260723 Rel.43763 (custom)	guessed

Credits

Matt Graham (mattg.systems)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-19586

Vulnerability from fkie_nvd - Published: 2026-08-20 19:16 - Updated: 2026-08-21 04:18

Severity

9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Summary

References

	URL	Tags
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.omadanetworks.com/en/support/download/
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.omadanetworks.com/us/support/download/
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/us/support/faq/5256/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "ER7212PC v2",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
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              "lessThan": "2.4.3 Build 20260722 Rel.40250",
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              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ER605 v2",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "2.4.4 Build 20260630 Rel.14398",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ER7206 v2",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "2.3.5 Build 20260625 Rel.43136",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
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          "product": "ER7406 v1",
          "vendor": "TP-Link Systems Inc",
          "versions": [
            {
              "lessThan": "1.3.4 Build 20260625 Rel.43136",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ER707-M2 v1",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "1.4.4 Build 20260625 Rel.43063",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "ER7412-M2 v1",
          "vendor": "TP-Link Systems Inc",
          "versions": [
            {
              "lessThan": "1.2.0 Build 20260630 Rel.82947",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
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          "product": "ER8411 v1",
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          "versions": [
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              "status": "affected",
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        },
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
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        },
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              "versionType": "custom"
            }
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        },
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        },
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              "status": "affected",
              "version": "0",
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            }
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        },
        {
          "defaultStatus": "unaffected",
          "product": "DR3220v-4G v1",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
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            }
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        },
        {
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          "product": "ER603WP-4G-Outdoor v1",
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          "product": "ER605W v2",
          "vendor": "TP-Link Systems Inc.",
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              "status": "affected",
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            }
          ]
        }
      ],
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    }
  ],
  "cveTags": [],
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    {
      "lang": "en",
      "value": "A pre-authentication OS command injection vulnerability has been identified in Omada gateways configured to operate as an OpenVPN Server due to insufficient validation of client-supplied data during OpenVPN connection establishment. An unauthenticated remote attacker may provide specially crafted input influencing backend command execution logic before authentication completes. Exploitation requires the OpenVPN Server feature to be enabled, VPN service reachable by the attacker and attacker to be able to initiate an OpenVPN connection attempt.\u00a0\n\n\n\nSuccessful exploitation may allow arbitrary command execution,\u00a0potentially\nleading to full compromise of the affected device."
    }
  ],
  "id": "CVE-2026-19586",
  "lastModified": "2026-08-21T04:18:02.220",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "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": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "LOW",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
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            {
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          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-20T00:00:00+00:00",
          "version": "2.0.3"
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  "published": "2026-08-20T19:16:51.103",
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      "url": "https://www.omadanetworks.com/en/support/download/"
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  "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
  "vulnStatus": "Received",
  "weaknesses": [
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        }
      ],
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "type": "Secondary"
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  ]
}

GHSA-32HP-8PJQ-2C8G

Vulnerability from github – Published: 2026-08-20 21:31 – Updated: 2026-08-20 21:31

Details

Successful exploitation may allow arbitrary command execution, potentially leading to full compromise of the affected device.

Severity

9.3 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-19586"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-20T19:16:51Z",
    "severity": "CRITICAL"
  },
  "details": "A pre-authentication OS command injection vulnerability has been identified in Omada gateways configured to operate as an OpenVPN Server due to insufficient validation of client-supplied data during OpenVPN connection establishment. An unauthenticated remote attacker may provide specially crafted input influencing backend command execution logic before authentication completes. Exploitation requires the OpenVPN Server feature to be enabled, VPN service reachable by the attacker and attacker to be able to initiate an OpenVPN connection attempt.\u00a0\n\n\n\nSuccessful exploitation may allow arbitrary command execution,\u00a0potentially\nleading to full compromise of the affected device.",
  "id": "GHSA-32hp-8pjq-2c8g",
  "modified": "2026-08-20T21:31:27Z",
  "published": "2026-08-20T21:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19586"
    },
    {
      "type": "WEB",
      "url": "https://www.omadanetworks.com/en/support/download"
    },
    {
      "type": "WEB",
      "url": "https://www.omadanetworks.com/us/support/download"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5256"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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"
    }
  ]
}

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.

Action not permitted

CVE-2026-19586 (GCVE-0-2026-19586)

FKIE_CVE-2026-19586

GHSA-32HP-8PJQ-2C8G

Tags

Sightings

Nomenclature