Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linksys | EA8100 | 1.0.3.216940 | — |
Advisories 1
- WID-SEC-2026-4555 Linksys Router: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
References
- https://vuldb.com/vuln/436428
- https://vuldb.com/vuln/436428/cti
- https://vuldb.com/cve/CVE-2026-127273
- https://vuldb.com/submit/1040994
- https://github.com/geo-chen/oss/blob/main/Linksys.md#finding-1-unauthenticated-network-reconnaissance-via-getwanstatusgetwanstatus3isadminpassworddefault-exploitable-cross-origin-via-dns-rebinding
- https://www.linksys.com/