[ CVE-2026-114383 · Published 21 Oct 2026 ]

Vulnerability in TOTOLINK EX200

CVSS 10.0 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

  • Critical severity: CVSS 10.0

[ Description ]Official description

A weakness has been identified in TOTOLINK EX200 5.2.3c.7200. This impacts the function setWiFiAclAddConfig of the file /cgi-bin/cstecgi.cgi of the component wireless.so. This manipulation of the argument macAddress causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.