CVE-2026-82616
Critical
Description
A vulnerability was found in TOTOLINK NR1800X 9.1.0u.6681_B20230703. Impacted is the function setUploadSetting of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.
SeverityCritical
CVSS9.9
Exploit probability—
ProductTotolink Nr1800x Firmware
PublishedAug 31, 2026
First seenAug 31, 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 nr1800x_firmware | 9.1.0u.6681_B20230703 | — |
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