CVE-2026-9514
Deferred Deferred - Pending Action
Command Injection in Totolink CA750-PoE

Publication date: 2026-05-25

Last updated on: 2026-05-25

Assigner: VulDB

Description
A security vulnerability has been detected in Totolink CA750-PoE 6.2c.510. Impacted is the function setNetworkDiag of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. The manipulation of the argument NetDiagHost/NetDiagPingNum/NetDiagPingSize/NetDiagPingTimeOut/NetDiagTracertHop is directly passed by the attacker/so we can control the NetDiagHost/NetDiagPingNum/NetDiagPingSize/NetDiagPingTimeOut/NetDiagTracertHop leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.
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Meta Information
Published
2026-05-25
Last Modified
2026-05-25
Generated
2026-06-15
AI Q&A
2026-05-26
EPSS Evaluated
2026-06-14
NVD
CVE-2026-9514
EUVD
EUVD-2026-31752
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
totolink ca750-poe 6.2c.510
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

This vulnerability exists in the Totolink CA750-PoE 6.2c.510 device, specifically in the setNetworkDiag function of the /cgi-bin/cstecgi.cgi file within the Setting Handler component.

An attacker can manipulate the arguments NetDiagHost, NetDiagPingNum, NetDiagPingSize, NetDiagPingTimeOut, and NetDiagTracertHop, which are passed directly to the system without proper validation.

This leads to an OS command injection vulnerability, allowing the attacker to execute arbitrary operating system commands remotely.

The exploit has been publicly disclosed and can be used by attackers.

Impact Analysis

This vulnerability allows a remote attacker to execute arbitrary operating system commands on the affected device.

Such unauthorized command execution can lead to compromise of the device, including potential control over network traffic, data interception, or disruption of services.

Because the attack can be initiated remotely without user interaction, it increases the risk of exploitation.

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