Live › vulnerability › CVE-2026-121616
A flaw in the mesh_login.cgi handler of the Linksys E5600 router (firmware 1.1.0.26) lets a remote request write past a buffer through an unchecked strcpy on fields such as username and password. A successful attack can crash the router or may let an attacker run code on it; the sources do not state which.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-04 03:46 UTC. All times on this page are UTC.
Owners of Linksys E5600 routers running firmware 1.1.0.26 that expose the web interface to remote requests. The sources say the product is no longer supported by its maintainer, so the flaw will likely stay unpatched. Systems not running this router model or firmware can skip it.
No product ranges from the sources yet.
1.1.0.26.No fix yet, per the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
A vulnerability was identified in Linksys E5600 1.1.0.26. Affected by this vulnerability is the function strcpy of the file /cgi-bin/mesh_login.cgi of the component JSON Request Parser. The manipulation of the argument username/password/token/source/cn/action leads to out-of-bounds write. The attack may be initiated remotely. The exploit is publicly available and might be used. 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.
This page as .md · .json · in your agent: get_signal("CVE-2026-121616")
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