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CVE-2026-19586— Pre-Authentication OS Command Injection in Omada Gateways on OpenVPN Server in Omada Gateways

Quick assessment

Affected
TP-Link Systems Inc. ER7212PC v2
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Omada 网关中已发现一个预身份验证的操作系统命令注入漏洞，该漏洞出现在配置为 OpenVPN 服务器运行的网关中，原因是 OpenVPN 连接建立过程中对用户提供的数据验证不足。未认证的远程攻击者可以在身份验证完成之前，通过提供精心构造的输入来影响后端的命令执行逻辑。 成功利用此漏洞可实现任意命令执行，可能导致受影响的设备被完全控制。 要利用该漏洞，需满足以下条件： 1. 已启用 OpenVPN 服务器功能； 2. 攻击者可以访问该 VPN 服务； 3. 攻击者能够发起 OpenVPN 连接尝试。

CVSS 9.3 · Critical EPSS 5.04% · P92

Affected Version Matrix 19

VendorProduct Version RangeStatus
TP-Link Systems Inc ER7406 v1 < 1.3.4 Build 20260625 Rel.43136 affected
TP-Link Systems Inc ER7412-M2 v1 < 1.2.0 Build 20260630 Rel.82947 affected
TP-Link Systems Inc. DR3150 v1 < 1.0.1 Build 20260722 Rel.16854 affected
TP-Link Systems Inc. DR3220v-4G v1 < 1.2.0 Build 20260630 Rel.82652 affected
TP-Link Systems Inc. DR3650v v1 < 1.2.0 Build 20260630 Rel.83311 affected
TP-Link Systems Inc. DR3650v-4G v1 < 1.2.0 Build 20260630 Rel.83347 affected
TP-Link Systems Inc. ER603WP-4G-Outdoor v1 < 1.0.2 Build 20260723 Rel.43271 affected
TP-Link Systems Inc. ER605 v2 < 2.4.4 Build 20260630 Rel.14398 affected
TP-Link Systems Inc. ER605W v2 < 2.0.4 Build 20260723 Rel.43763 affected
TP-Link Systems Inc. ER701-5G-Outdoor v1 < 1.0.3 Build 20260723 Rel.40931 affected
TP-Link Systems Inc. ER703WP-4G-Outdoor v1 < 1.1.7 Build 20260723 Rel.41712 affected
TP-Link Systems Inc. ER706W v1 < 1.2.11 Build 20260723 Rel.41567 affected
TP-Link Systems Inc. ER706W-4G v2 < 2.1.11 Build 20260723 Rel.41624 affected
TP-Link Systems Inc. ER706WP-4G v1 < 1.1.11 Build 20260723 Rel.41624 affected
TP-Link Systems Inc. ER707-M2 v1 < 1.4.4 Build 20260625 Rel.43063 affected
TP-Link Systems Inc. ER7206 v2 < 2.3.5 Build 20260625 Rel.43136 affected
TP-Link Systems Inc. ER7212PC v2 < 2.4.3 Build 20260722 Rel.40250 affected
TP-Link Systems Inc. ER8411 v1 < 1.4.1 Build 20260708 Rel.64832 affected
TP-Link Systems Inc. v1 < 1.2.6 Build 20260723 Rel.41321 affected
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I. Basic Information for CVE-2026-19586

Vulnerability Information
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Vulnerability Title
Pre-Authentication OS Command Injection in Omada Gateways on OpenVPN Server in Omada Gateways
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

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

II. Public POCs for CVE-2026-19586

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III. Intelligence Information for CVE-2026-19586

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Vendor Advisories for CVE-2026-19586 (1)

Vendor Pages for CVE-2026-19586 (1)

Same Patch Batch · TP-Link Systems Inc. · 2026-08-20 · 3 CVEs total

CVE-2026-19683 6.3 MEDIUM Unencrypted Credential Transmission in Omada Gateway Dynamic DNS Authentication in Omada G
CVE-2026-9033 6.0 MEDIUM Unauthenticated Captive Portal Session Termination and Forced Logout in Omada Gateways

IV. Related Vulnerabilities

Same product: ER7212PC v2
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-78

V. Comments for CVE-2026-19586

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