CVE-2026-31163
Medium
Description
An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the dhcpMtu parameter to /cgi-bin/cstecgi.cgi.
SeverityMedium
CVSS6.5
Exploit probability—
ProductTotolink A3300r Firmware
PublishedApr 23, 2026
First seenApr 23, 2026
Weakness typeCWE-77Command injection
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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