CVE-2026-1328: Totolink NR1800X POST Request cstecgi.cgi setWizardCfg buffer overflow

Published Jan 22, 2026
·
Updated

A vulnerability was detected in Totolink NR1800X 9.1.0u.6279B20210910. Impacted is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Performing a manipulation of the argument ssid results in buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

Affected Software

3 affected components
TOTOLINK NR1800X
All of the following
TOTOLINK Nr1800x Firmware=9.1.0u.6279_b20210910
TOTOLINK NR1800X

Event History

Jan 22, 2026
CVE Published
via MITRE·02:32 PM
Data Sourced
via MITRE·02:32 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-1328?

CVE-2026-1328 is considered a critical vulnerability due to the potential for buffer overflow.

2

How do I fix CVE-2026-1328?

To fix CVE-2026-1328, update your Totolink NR1800X to the latest firmware version provided by the vendor.

3

What types of attacks can exploit CVE-2026-1328?

CVE-2026-1328 can be exploited through specially crafted POST requests targeting the setWizardCfg function.

4

Which devices are affected by CVE-2026-1328?

The Totolink NR1800X model running firmware version 9.1.0u.6279_B20210910 is affected by CVE-2026-1328.

5

What are the potential impacts of CVE-2026-1328?

CVE-2026-1328 may lead to remote code execution, allowing attackers to gain unauthorized access to the device.

Contact

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