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CVE-2026-19586Suited to automated attack · CISA

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

CVSS score

9.3

EPSS probability

%5.7

Risk score

0.5

Published

1 mo ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-19586 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

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.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-19586 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1TP-Link Systems Inc.ER7212PC v2 View
2TP-Link Systems Inc.ER605 v2 View
3TP-Link Systems Inc.ER7206 v2 View
4TP-Link Systems Inc.ER7406 v1 View
5TP-Link Systems Inc.ER707-M2 v1 View
6TP-Link Systems Inc.ER7412-M2 v1 View
7TP-Link Systems Inc.ER8411 v1 View
8TP-Link Systems Inc.ER706W v1 View
9TP-Link Systems Inc.v1 View
10TP-Link Systems Inc.ER706W-4G v2 View
11TP-Link Systems Inc.ER706WP-4G v1 View
12TP-Link Systems Inc.ER703WP-4G-Outdoor v1 View
13TP-Link Systems Inc.DR3220v-4G v1 View
14TP-Link Systems Inc.DR3650v v1 View
15TP-Link Systems Inc.DR3650v-4G v1 View
16TP-Link Systems Inc.ER603WP-4G-Outdoor v1 View
17TP-Link Systems Inc.DR3150 v1 View
18TP-Link Systems Inc.ER701-5G-Outdoor v1 View
19TP-Link Systems Inc.ER605W v2 View
20tp-linker7212pc firmware View
21tp-linker7212pc View
22tp-linker605 firmware View
23tp-linker605 View
24tp-linker605w firmware View
25tp-linker605w View
26tp-linker7206 firmware View
27tp-linker7206 View
28tp-linker7406 firmware View
29tp-linker7406 View
30tp-linker707-m2 firmware View
31tp-linker707-m2 View
32tp-linker7412-m2 firmware View
33tp-linker7412-m2 View
34tp-linker8411 firmware View
35tp-linker8411 View
36tp-linker706w firmware View
37tp-linker706w View
38tp-linker706w-4g firmware View
39tp-linker706w-4g View
40tp-linker706w-4g firmware View
41tp-linker706w-4g View
42tp-linker706wp-4g firmware View
43tp-linker706wp-4g View
44tp-linker703wp-4g-outdoor firmware View
45tp-linker703wp-4g-outdoor View
46tp-linker603wp-4g-outdoor firmware View
47tp-linker603wp-4g-outdoor View
48tp-linker701-5g-outdoor firmware View
49tp-linker701-5g-outdoor View
50tp-linkdr3220v-4g firmware View
51tp-linkdr3220v-4g View
52tp-linkdr3650v firmware View
53tp-linkdr3650v View
54tp-linkdr3650v-4g firmware View
55tp-linkdr3650v-4g View
56tp-linkdr3150 firmware View
57tp-linkdr3150 View
Total affected vendors: 2|Products: 57

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
9.8CVSS V31CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD
9.3CVSS V4_0CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:LCVE CNA
9.3CVSS V40CRITICALCVSS: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:XNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

4 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

Omada Gateway Firmware Downloads (EN)

Open source
cvelist

Omada Gateway Firmware Downloads (US)

Open source
reference

Omada Gateway Firmware Downloads (EN)

Open source
reference

Omada Gateway Firmware Downloads (US)

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-19586 is associated with the following CWEs:

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

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-19586 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

Omada Gateway Firmware Downloads (EN)patchOmada Gateway Firmware Downloads (US)patchhttps://www.tp-link.com/us/support/faq/5256/vendor-advisoryhttps://mattg.systems/posts/cve-2026-19586/vendor-advisory

CVSS Vector Radar Chart

9.3 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

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
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama doğrulandı

4 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

TS
TP-Link Systems Inc. logo
TP-Link Systems Inc.
T
tp-link logo
tp-link

Weakness Type (CWE & CAPEC)

CWE-78

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