CVE-2026-5030
Received Received - Intake
Remote Command Injection in Totolink NR1800X Telnet Service

Publication date: 2026-03-29

Last updated on: 2026-04-29

Assigner: VulDB

Description
A vulnerability has been found in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi of the component Telnet Service. The manipulation of the argument host_time leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
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Meta Information
Published
2026-03-29
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-03-29
EPSS Evaluated
2026-06-15
NVD
CVE-2026-5030
EUVD
EUVD-2026-16971
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
totolink nr1800x_firmware 9.1.0u.6279_b20210910
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-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
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Executive Summary

This vulnerability exists in the Totolink NR1800X router, specifically in version 9.1.0u.6279_B20210910. It affects the NTPSyncWithHost function within the Telnet Service component. The issue arises from improper handling of the host_time argument, which allows an attacker to perform command injection. This means that an attacker can remotely execute arbitrary commands on the affected device by manipulating this argument.

Impact Analysis

The vulnerability allows remote attackers to inject and execute arbitrary commands on the affected device. This can lead to unauthorized control over the device, potentially compromising its integrity, availability, and confidentiality. Attackers could disrupt network operations, steal sensitive information, or use the device as a foothold for further attacks within the network.

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