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2 vulnerabilities found for RE220 v3 by TP-Link Systems Inc.

CVE-2026-109506 (GCVE-0-2026-109506)

Vulnerability from nvd – Published: 2026-10-14 18:31 – Updated: 2026-10-15 19:33

Title

Improper Authentication in Multiple TP-Link WiFi Repeaters

Summary

Multiple TP-Link Wi-Fi range extenders use a custom, reversible XOR-and-dictionary transformation in the HTTP web-management login flow. An unauthenticated attacker on the same local network who can capture the network traffic associated with legitimate administrator login may be able to derive an alternative credential value that produces the same accepted authentication result and use it to authenticate to the device’s web-management interface with administrator privileges. Exploitation requires the management login to use HTTP and the attacker to observe the session key, dictionary, and login value associated with a legitimate administrator login. Successful exploitation may allow an unauthenticated adjacent attacker to gain administrator access to the affected device and modify exposed configuration settings.

Severity

5.9 (Medium)


                        
                          CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-15 19:33 UTC

CWE

CWE-287 - Improper Authentication

Assigner

TPLink CNA under the mitre root

CNA scorecard B 88/100 over 97 records in the last 180 days details

References

3 references

URL	Tags
https://www.tp-link.com/us/support/download/	patch
https://www.tp-link.com/en/support/download/	patch
https://www.tp-link.com/us/support/faq/5344/	vendor-advisory

Impacted products

16 products

Vendor	Product	Version
TP-Link Systems Inc.	RE190 v5	Affected: 0 , < V5_260904 (custom)
TP-Link Systems Inc.	RE200 v5	Affected: 0 , < V5_260904 (custom)
TP-Link Systems Inc.	RE205 v4	Affected: 0 , < V4_260904 (custom)
TP-Link Systems Inc.	RE215 v1	Affected: 0 , < V1_260904 (custom)
TP-Link Systems Inc.	RE220 v3	Affected: 0 , < V3_260904 (custom)
TP-Link Systems Inc.	RE230 v2	Affected: 0 , < V2_260904 (custom)
TP-Link Systems Inc.	RE300 v2	Affected: 0 , < V2_260904 (custom)
TP-Link Systems Inc.	RE305 v4	Affected: 0 , < V4_260904 (custom)
TP-Link Systems Inc.	RE330 v1	Affected: 0 , < V1_260904 (custom)
TP-Link Systems Inc.	RE335 v1	Affected: 0 , < V1_260904 (custom)
TP-Link Systems Inc.	RE365 v2	Affected: 0 , < V2_260904 (custom)
TP-Link Systems Inc.	RE365 v3	Affected: 0 , < V3_260904 (custom)
TP-Link Systems Inc.	RE750C v4	Affected: 0 , < V4_260904 (custom)
TP-Link Systems Inc.	RE450 v4.8	Affected: 0 , < V4_260915 (custom)
TP-Link Systems Inc.	RE550 v1	Affected: 0 , < V1_260915 (custom)
TP-Link Systems Inc.	RE315 v1	Affected: 0 , < V1_260904 rel3959 (custom)

Credits

Lukas Palm

Show details on NVD website

JSON

To clipboard

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