CVE-2026-5103
Medium
Description
A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. This issue affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument enable causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
SeverityMedium
CVSS6.3
Exploit probability—
ProductTotolink A3300r Firmware
PublishedMar 30, 2026
First seenMar 30, 2026
Weakness typeCWE-77Command injectionCWE-74Injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| totolink a3300r_firmware | 17.0.0cu.557_b20221024 | — |
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