CVE-2026-121615

A vulnerability was determined in Linksys E5600 1.1.0.26. Affected is an unknown function of the file /cgi-bin/mesh_login.cgi of the component Login Handler. Executing a manipulation can lead to improper authentication. The attack can be launched 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. This vulnerability only affects products that are no longer supported by the maintainer.

• CWE-287

• https://github.com/Zimo-666/E5600-cves/tree/main/02-mesh-login-auth-bypass
• https://vuldb.com/cve/CVE-2026-121615
• https://vuldb.com/submit/1023310
• https://vuldb.com/vuln/430463
• https://vuldb.com/vuln/430463/cti
• https://www.linksys.com/

Published

Nov 4, 2026

Last Modified

Nov 4, 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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