TP-Link RE315 privileges management

Summaryinfo

A vulnerability, which was classified as critical, has been found in TP-Link RE190, RE200, RE205, RE215, RE220, RE230, RE300, RE305, RE330, RE335, RE365, RE750C, RE450, RE550 and RE315. Affected is an unknown function. Performing a manipulation results in privileges management. This vulnerability is cataloged as CVE-2026-109506. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in TP-Link RE190, RE200, RE205, RE215, RE220, RE230, RE300, RE305, RE330, RE335, RE365, RE750C, RE450, RE550 and RE315. This affects an unknown functionality. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at tp-link.com. This vulnerability is uniquely identified as CVE-2026-109506 since 10/12/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/14/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• TP-Link

Name

• RE190
• RE200
• RE205
• RE215
• RE220
• RE230
• RE300
• RE305
• RE315
• RE330
• RE335
• RE365
• RE450
• RE550
• RE750C

License

• commercial

Website

• Vendor: https://www.tp-link.com/

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