CVE-2026-7748
High
Description
A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
SeverityHigh
CVSS8.8
Exploit probability—
ProductTotolink N300rh Firmware
PublishedMay 4, 2026
First seenMay 4, 2026
Weakness typeCWE-120CWE-120CWE-119Memory buffer bounds error
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| totolink n300rh_firmware | 3.2.4-B20220812 | — |
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