CVE-2026-127276Linksys EA8100 Web UI cookie httponly flag

Descripción

A vulnerability was identified in Linksys EA8100 1.0.3.216940. Impacted is an unknown function of the component Web UI. Such manipulation leads to cookie without 'httponly' flag. It is possible to launch the attack remotely. This attack is characterized by high complexity. The exploitability is considered difficult. The exploit is publicly available and might 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-436431 | Linksys EA8100 Web UI cookie httponly flag vdb-entry
• VDB-436431 | CTI Indicators (IOB, IOC) signaturepermissions-required
• CVE-2026-127276 | CVE Analysis and Report third-party-advisory
• Submit #1040998 | Linksys EA8100 Router firmware 1.0.3.216940 Insufficiently Protected Credentials third-party-advisory
• https://github.com/geo-chen/oss/blob/main/Linksys.md#finding-4-admin-credential-stored-in-a-non-httponly-cook… exploit
• https://www.linksys.com/ product