CVE-2026-1156: Totolink LR350 cstecgi.cgi setWiFiBasicCfg buffer overflow

Published Jan 19, 2026
·
Updated

A vulnerability was determined in Totolink LR350 9.3.5u.6369B20220309. Affected by this issue is the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ssid causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

Affected Software

3 affected components
TOTOLINK LR350
All of the following
TOTOLINK Lr350 Firmware=9.3.5u.6369_b20220309
TOTOLINK LR350

Event History

Jan 19, 2026
CVE Published
via MITRE·01:32 PM
Data Sourced
via MITRE·01:32 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-1156?

CVE-2026-1156 is classified as a high-severity vulnerability due to its potential for remote code execution through buffer overflow.

2

How do I fix CVE-2026-1156?

To mitigate CVE-2026-1156, users should update the Totolink LR350 firmware to the latest version provided by the manufacturer.

3

What types of devices are affected by CVE-2026-1156?

CVE-2026-1156 affects the Totolink LR350 router, specifically version 9.3.5u.6369_B20220309.

4

What is the impact of CVE-2026-1156?

The impact of CVE-2026-1156 can lead to unauthorized access and control of the device, compromising the network's security.

5

How does CVE-2026-1156 exploit the system?

CVE-2026-1156 exploits the system through a buffer overflow in the setWiFiBasicCfg function by manipulating the ssid argument.

Contact

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