CVE-2026-9404
Critical
Description
A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument provider leads to os command injection. The attack may be launched remotely. The exploit is publicly available and might be used.
SeverityCritical
CVSS9.8
Exploit probability—
ProductTotolink A8000ru Firmware
PublishedMay 24, 2026
First seenMay 24, 2026
Weakness typeCWE-78OS command injectionCWE-77Command injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| totolink a8000ru_firmware | 7.1cu.643_b20200521 | — |
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