CVE-2026-7750: Totolink N300RH POST Request cstecgi.cgi setMacFilterRules buffer overflow

Published May 4, 2026
·
Updated

A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument macaddress results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.

Affected Software

1 affected component
TOTOLINK Totolink N300RH=3.2.4-B20220812

Event History

May 4, 2026
CVE Published
via MITRE·09:00 AM
Data Sourced
via MITRE·09:00 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:16 AM
DescriptionSeverityWeakness
Dec 5, 58325
Event
via FIRST·01:38 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-7750?

CVE-2026-7750 has been identified as a critical vulnerability due to the potential for remote code execution through a buffer overflow.

2

How do I fix CVE-2026-7750?

To address CVE-2026-7750, update the Totolink N300RH to a secure version that has patched the vulnerability.

3

What is affected by CVE-2026-7750?

CVE-2026-7750 specifically affects the Totolink N300RH version 3.2.4-B20220812.

4

What is the attack vector for CVE-2026-7750?

CVE-2026-7750 can be exploited through crafted POST requests targeting the cstecgi.cgi file.

5

What are the potential impacts of CVE-2026-7750?

Exploitation of CVE-2026-7750 may lead to unauthorized access, data manipulation, or complete control over the affected device.

Contact

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