CVE-2026-127275 PUBLISHED

A vulnerability was determined in Linksys EA8100 1.0.3.216940. This issue affects the function SetRemoteSetting/SetUnsecuredWiFiWarning of the file ui_server.lua of the component JNAP API. This manipulation of the argument isEnabled/enabled causes missing authentication. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

• geochen (VulDB User) reporter
• VulDB CNA Team coordinator

• VDB-436430 | Linksys EA8100 JNAP API ui_server.lua SetUnsecuredWiFiWarning missing authentication
• VDB-436430 | CTI Indicators (IOB, IOC, IOA)
• CVE-2026-127275 | CVE Analysis and Report
• Submit #1040997 | Linksys EA8100 Router firmware 1.0.3.216940 Missing Authentication
• https://github.com/geo-chen/oss/blob/main/Linksys.md#finding-3-unauthenticated-write-access-to-remote-management-pairing-state-and-unsecured-wifi-warning-flag
• https://www.linksys.com/

• Missing Authentication CWE
• Improper Authentication CWE