CVE-2026-127273

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.

• CWE-287
• CWE-306

• https://github.com/geo-chen/oss/blob/main/Linksys.md#finding-1-unauthenticated-network-reconnaissance-via-getwanstatusgetwanstatus3isadminpassworddefault-exploitable-cross-origin-via-dns-rebinding
• https://vuldb.com/cve/CVE-2026-127273
• https://vuldb.com/submit/1040994
• https://vuldb.com/vuln/436428
• https://vuldb.com/vuln/436428/cti
• https://www.linksys.com/

Published

Nov 13, 2026

Last Modified

Nov 13, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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