CVE-2026-127273Linksys EA8100 JNAP API IsAdminPasswordDefault missing authentication

Descripción

A vulnerability has been found in Linksys EA8100 1.0.3.216940. This affects the function GetWANStatus/GetWANStatus3/IsAdminPasswordDefault of the component JNAP API. The manipulation leads to missing authentication. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• VDB-436428 | Linksys EA8100 JNAP API IsAdminPasswordDefault missing authentication vdb-entrytechnical-description
• VDB-436428 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
• CVE-2026-127273 | CVE Analysis and Report third-party-advisory
• Submit #1040994 | Linksys EA8100 Router 1.0.3.216940 Missing Authentication third-party-advisory
• https://github.com/geo-chen/oss/blob/main/Linksys.md#finding-1-unauthenticated-network-reconnaissance-via-get… exploit
• https://www.linksys.com/ product