CVE-2026-19847
High
Description
A security flaw has been discovered in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component wps.so. The manipulation of the argument pin results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.
SeverityHigh
CVSS8.8
Exploit probability—
ProductTotolink A800r Firmware
PublishedAug 14, 2026
First seenAug 14, 2026
Weakness typeCWE-121CWE-121CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| totolink a800r_firmware | 4.1.2cu.5137_B20200730 | — |
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