High severity8.8NVD Advisory· Published Aug 14, 2026
CVE-2026-19814
CVE-2026-19814
Description
A vulnerability was detected in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setMacQos of the file /cgi-bin/cstecgi.cgi of the component firewall.so. Performing a manipulation of the argument macAddress results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.
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Affected products
1Patches
Vulnerability mechanics
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