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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-19586
StatePUBLISHED
AssignerTPLink
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-20 19:16:51 UTC
Updated2026-09-03 15:05:12 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 9.3 CRITICAL from f23511db-6c3e-4e32-a477-6aa17d310630

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

EPSS: 0.050900000 probability, percentile 0.917510000 (date 2026-08-31)

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

VersionSourceTypeScoreSeverityVector
4.0f23511db-6c3e-4e32-a477-6aa17d310630Secondary9.3CRITICALCVSS: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/C...
4.0CNACVSS9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
Low
Sub Integrity
Low
Sub Availability
Low

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

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Tp-link Er605 2.0 All All All
Hardware Tp-link Er605w 2.0 All All All
Operating System Tp-link Er605w Firmware All All All All
Operating System Tp-link Er605 Firmware All All All All
Hardware Tp-link Er706w - All All All
Hardware Tp-link Er706w-4g - All All All
Operating System Tp-link Er706w-4g Firmware All All All All
Operating System Tp-link Er706w Firmware All All All All
Hardware Tp-link Er707-m2 - All All All
Operating System Tp-link Er707-m2 Firmware All All All All
Hardware Tp-link Er7206 2.0 All All All
Operating System Tp-link Er7206 Firmware All All All All
Hardware Tp-link Er7212pc 2.0 All All All
Operating System Tp-link Er7212pc Firmware All All All All
Hardware Tp-link Er7406 - All All All
Operating System Tp-link Er7406 Firmware All All All All
Hardware Tp-link Er7412-m2 - All All All
Operating System Tp-link Er7412-m2 Firmware All All All All
Hardware Tp-link Er8411 - All All All
Operating System Tp-link Er8411 Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TP-Link Systems Inc. ER7212PC V2 affected 2.4.3 Build 20260722 Rel.40250 custom Not specified
CNA TP-Link Systems Inc. ER605 V2 affected 2.4.4 Build 20260630 Rel.14398 custom Not specified
CNA TP-Link Systems Inc. ER7206 V2 affected 2.3.5 Build 20260625 Rel.43136 custom Not specified
CNA TP-Link Systems Inc ER7406 V1 affected 1.3.4 Build 20260625 Rel.43136 custom Not specified
CNA TP-Link Systems Inc. ER707-M2 V1 affected 1.4.4 Build 20260625 Rel.43063 custom Not specified
CNA TP-Link Systems Inc ER7412-M2 V1 affected 1.2.0 Build 20260630 Rel.82947 custom Not specified
CNA TP-Link Systems Inc. ER8411 V1 affected 1.4.1 Build 20260708 Rel.64832 custom Not specified
CNA TP-Link Systems Inc. ER706W V1 affected 1.2.11 Build 20260723 Rel.41567 custom Not specified
CNA TP-Link Systems Inc. V1 affected 1.2.6 Build 20260723 Rel.41321 custom Not specified
CNA TP-Link Systems Inc. ER706W-4G V2 affected 2.1.11 Build 20260723 Rel.41624 custom Not specified
CNA TP-Link Systems Inc. ER706WP-4G V1 affected 1.1.11 Build 20260723 Rel.41624 custom Not specified
CNA TP-Link Systems Inc. ER703WP-4G-Outdoor V1 affected 1.1.7 Build 20260723 Rel.41712 custom Not specified
CNA TP-Link Systems Inc. DR3220v-4G V1 affected 1.2.0 Build 20260630 Rel.82652 custom Not specified
CNA TP-Link Systems Inc. DR3650v V1 affected 1.2.0 Build 20260630 Rel.83311 custom Not specified
CNA TP-Link Systems Inc. DR3650v-4G V1 affected 1.2.0 Build 20260630 Rel.83347 custom Not specified
CNA TP-Link Systems Inc. ER603WP-4G-Outdoor V1 affected 1.0.2 Build 20260723 Rel.43271 custom Not specified
CNA TP-Link Systems Inc. DR3150 V1 affected 1.0.1 Build 20260722 Rel.16854 custom Not specified
CNA TP-Link Systems Inc. ER701-5G-Outdoor V1 affected 1.0.3 Build 20260723 Rel.40931 custom Not specified
CNA TP-Link Systems Inc. ER605W V2 affected 2.0.4 Build 20260723 Rel.43763 custom Not specified

References

ReferenceSourceLinkTags
mattg.systems/posts/cve-2026-19586 f23511db-6c3e-4e32-a477-6aa17d310630 mattg.systems Exploit, Third Party Advisory
www.tp-link.com/us/support/faq/5256 f23511db-6c3e-4e32-a477-6aa17d310630 www.tp-link.com Vendor Advisory
www.omadanetworks.com/us/support/download f23511db-6c3e-4e32-a477-6aa17d310630 www.omadanetworks.com Product
www.omadanetworks.com/en/support/download f23511db-6c3e-4e32-a477-6aa17d310630 www.omadanetworks.com Product
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Matt Graham (mattg.systems) (en)

© CVE.report 2026

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