Description
A cryptographic weakness exists in the Omada adoption protocol. The protocol relies on hard-coded cryptographic keys to establish trust and protect authentication exchanges between controllers and managed devices during device adoption. An attacker may be able to impersonate trusted controllers or managed devices and gain access to sensitive adoption-related communications.
Affected products
tp-link: omada oc200 v3 firmware; tp-link: omada oc200 v3; tp-link: omada oc300 firmware; tp-link: omada oc300; tp-link: omada oc400 firmware; tp-link: omada oc400; tp-link: omada fusion 2.5g firmware; tp-link: omada fusion 2.5g; tp-link: omada er707-m2 firmware; tp-link: omada er707-m2; tp-link: omada tl-sg3452x firmware; tp-link: omada tl-sg3452x; tp-link: omada sg3428xmpp firmware; tp-link: omada sg3428xmpp; tp-link: omada sg3428xmp firmware
References3
- www.tp-link.com/us/support/faq/5216/ Vendor Advisory
- www.omadanetworks.com/en/support/download/ Product
- www.omadanetworks.com/us/support/download/ Product
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 4.0
-
6.9
MEDIUM
Score source: CNA
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/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 — exploit probability
- 1% percentile: 53 · as of 13 November 2026
- CWE
- CWE-321
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.