More than 25,000 Linksys Smart Wi-Fi Routers Leaking Sensitive Information to the Public Internet

More than 25,000 Linksys Smart Wi-Fi Routers Leaking Sensitive Information to the Public Internet

A vulnerability with Linksys Smart Wi-Fi routers allows attackers to gain unauthenticated, remote access to the vulnerable router and to access sensitive information.


The vulnerability can be exploited by just knowing the public IP address of the router. It can be exploited simply by just opening the router public IP address in the web browser and from the developer console, move to network and JNAP queries.

By just opening the JNAP queries, the sensitive information will get exposed, and it can be reproduced by sending a request to JNAP endpoint.


“This sensitive information disclosure vulnerability requires no authentication and can be exploited by a remote attacker with little technical knowledge,” reads BadPackets report.


Following are the sensitive information leak that includes

  • MAC address of every device, including historical one

  • Device name

  • Operating System

  • In some cases, it includes device type, manufacturer, model number, and description. Other sensitive information such as settings, firewall status, firmware update settings, and DDNS settings are also leaked.


    “According to researchers 25,617, Linksys Smart Wi-Fi routers are currently leaking sensitive information to the public internet.”


    The leakage pose privacy concerns, by having the extracted details attacker ..