Skip to main content
IMMUNITYSEC

CVE-2026-19586

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

Updated

CVSS 4.0
9.3 CRITICAL
EPSS
5.8% (93rd pct)
CISA KEV
Not listed
Published
2026-08-20
Weakness
CWE-78

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.

Key Findings

as of 2026-11-12
All KEV statistics→
  • Its current EPSS score (5.8%) is higher than that of 18% of CISA KEV entries.

Severity

CVSS 4.0 · CNA · CVSS-B9.3 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:LOpen in CVSS calculator
SSVC · CISA-ADP
Exploitationnone
Automatableyes
Technical impacttotal

Affected Products

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

References

4 links

Vendor advisories

Patches

Third-party advisories

Record Details

Published
2026-08-20
Last updated
2026-08-28
Assigner (CNA)
TPLink
Credited to
Matt Graham (mattg.systems)

More from TP-Link Systems Inc.

CVE-2025-93778.6 HIGH

Authenticated RCE via Parental Control command injection

TP-Link Systems Inc.KEVEPSS 41.3%2025-08-29
CVE-2026-06528.7 HIGH

Remote Code Execution on TP-Link Tapo C260 by Guest User

TP-Link Systems Inc.EPSS 23.3%2026-02-10
CVE-2026-171767.7 HIGH

OS Command Injection Vulnerability in Deco Devices

TP-Link Systems Inc.EPSS 15.0%2026-09-10

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). Alert titles and links from CISA cybersecurity alerts. This site is not affiliated with or endorsed by MITRE, NVD, CISA, or FIRST.