CVE-2026-5177: Totolink A3300R cstecgi.cgi setWiFiBasicCfg command injection

Published Mar 31, 2026
·
Updated

A weakness has been identified in Totolink A3300R 17.0.0cu.557b20221024. Affected by this vulnerability is the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument rxRate can lead to command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.

Affected Software

3 affected components
TOTOLINK Totolink A3300R=17.0.0cu.557_b20221024
All of the following
TOTOLINK A3300R firmware=17.0.0cu.557_b20221024
TOTOLINK A3300R

Event History

Mar 31, 2026
CVE Published
via MITRE·02:00 AM
Data Sourced
via MITRE·02:00 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:15 AM
DescriptionSeverityWeaknessAffected Software
Feb 13, 58282
Event
via FIRST·07:45 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-5177?

CVE-2026-5177 has a high severity due to the potential for command injection affecting the Totolink A3300R.

2

How do I fix CVE-2026-5177?

To mitigate CVE-2026-5177, update the Totolink A3300R firmware to the latest version that addresses this vulnerability.

3

What models are affected by CVE-2026-5177?

CVE-2026-5177 specifically affects the Totolink A3300R running version 17.0.0cu.557_b20221024.

4

What type of vulnerability is CVE-2026-5177?

CVE-2026-5177 is a command injection vulnerability that allows attackers to execute arbitrary commands on the affected device.

5

How can CVE-2026-5177 be exploited?

CVE-2026-5177 can be exploited by manipulating the argument rxRate in the setWiFiBasicCfg function within the cstecgi.cgi file.

Company

Resources

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