Authentication Weakness on Omada Controllers, Gateways and Access Points

Summary

An authentication weakness was identified in Omada Controllers, Gateways and Access Points, controller-device adoption due to improper handling of random values. Exploitation requires advanced network positioning and allows an attacker to intercept adoption traffic and forge valid authentication through offline precomputation, potentially exposing sensitive information and compromising confidentiality.

Timeline

1. Jan 22, 2026, 11:14 PM UTCCVE published
2. Jan 23, 2026, 8:04 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 6, 2026, 11:18 PM UTCRecord last updated

Affected versions

• TP-Link Systems Inc. Omada Software Controller

  fixed in 6.0.0.24

• TP-Link Systems Inc. Omada Cloud Controller

  fixed in 6.0.0.100

• TP-Link Systems Inc. Omada Hardware Controller (OC200, OC300, OC400)

  fixed in 6.0.0.34

• TP-Link Systems Inc. Omada Hardware Controller OC220

  fixed in 5.15.24

• TP-Link Systems Inc. Omada Gateway (ER605 v2.0)

  fixed in 2.3.2 Build 20251029 Rel.12727

• TP-Link Systems Inc. Omada Gateway (ER7206 v2.0)

  fixed in 2.2.2 Build 20250724 Rel.11109

• TP-Link Systems Inc. Omada Gateway (ER7406, ER706W, ER706-4G)

  fixed in 1.2.x

• TP-Link Systems Inc. Omada Gateway (ER707-M2, ER-8411)

  fixed in 1.3.x

• TP-Link Systems Inc. Omada Gateway (ER7412-M2, ER706WP-4G, ER703WP-4G-Outdoor, DR3220v-4G, DR3650v, DR3650v-4G)

  fixed in 1.1.0

• TP-Link Systems Inc. Omada Gateway (ER8411)

  fixed in 1.3.5 Build 20251028 Rel.06811

• TP-Link Systems Inc. Omada Gateway (ER706W-4G 2.0)

  fixed in 2.1.0 Build 20250810 Rel.77020

• TP-Link Systems Inc. Omada Gateway (ER701-5G-Outdoor)

  fixed in 1.0.0 Build 20250826 Rel.68862

• TP-Link Systems Inc. Omada Gateway (ER605W 2.0)

  fixed in 2.0.2 Build 20250723 Rel.39048

• TP-Link Systems Inc. Omada Gateway ER7212PC 2.0

  fixed in 2.2.1 Build 20251027 Rel.75129

• TP-Link Systems Inc. Omada Festa Gateway FR365

  fixed in 1.1.10 Build 20250626 Rel.81746

• TP-Link Systems Inc. Omada Gateway G36W-4G

  fixed in 1.1.5 Build 20250710 Rel.62142

• TP-Link Systems Inc. Omada Access Point (EAP660 HD v1.0/v2.0, EAP620 HD v2.0/v3.0/v3.20, EAP610/EAP610-Outdoor v1.0/v2.0, EAP623-Outdoor HD v1.0, EAP625-Outdoor HD v1.0)EAP

  fixed in 1.6.1

• TP-Link Systems Inc. Omada Access Point (EAP655-Wall v1.0)

  fixed in 1.6.2 Build 20251107 Rel.35700

• TP-Link Systems Inc. Omada Access Point (EAP772 v1.0, EAP773 v1.0, EAP783 v1.0, EAP787 v1.0, EAP720 v1.0, EAP725-Wall v1.0, EAp723 v2.0)

  fixed in 1.1.2

• TP-Link Systems Inc. Omada Access Point (EAP723 v1.0, EAP772 v2.0, EAP772-Outdoor v 1.0, EAP770 v2.0)

  fixed in 1.3.2 Build 20250901 Rel.52255

• TP-Link Systems Inc. Omada Access Point (EAP215 Bridge KIT 3.0, EAP211 Bridge KIT 3.0)

  fixed in 1.1.4 Build 20251112 Rel.34769

• TP-Link Systems Inc. Omada Beam Bridge 5 UR v1.0

  fixed in 1.1.5 Build 20250928 Rel.68499

• TP-Link Systems Inc. Omada Access Point (EAP603GP-Desktop, EAP615GP-Wall 1.20, EAP625GP-Wall 1.0/1.20, EAP610GP-Desktop 1.0/1.20/1.26), EAP650-Desktop v1.0)

  fixed in 1.1.0

• TP-Link Systems Inc. Omada Access Point (EAP650GP-Desktop 1.0)

  fixed in 1.0.1 Build 20250819 Rel.60298

• TP-Link Systems Inc. Omada Access Point (EAP653 v1.0, EAP650-Outdoor v1.0)

  fixed in 1.3.3 Build 20251111 Rel.72627

• TP-Link Systems Inc. Omada Access Point (EAP230-Wall v1.0, EAP235-Wall v1.0)

  fixed in 3.3.1 Build 20251203 Rel.58135

• TP-Link Systems Inc. Omada Access Point (EAP603-Outdoor v1.0, EAP615-Wall v1.0/v1.20)

  fixed in 1.5.1

• TP-Link Systems Inc. Omada Access Point (EAP653 UR v1.0)

  fixed in 1.4.2 Build 20251208 Rel.43830

• TP-Link Systems Inc. Omada Access Point (EAP615-Wall v1.0/v1.20)

  fixed in 1.5.10 Build 20250903 Rel.49784

• TP-Link Systems Inc. Omada EAP100-Bridge KIT v1.0

  fixed in 1.0.3 Build 20251015 Rel.62058

References 3