CVE-2026-1327
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-22

Last updated on: 2026-04-29

Assigner: VulDB

Description
A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Such manipulation of the argument command leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-01-22
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-01-22
EPSS Evaluated
2026-06-14
NVD
CVE-2026-1327
EUVD
EUVD-2026-4146
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
totolink nr1800x_firmware 9.1.0u.6279_b20210910
totolink nr1800x *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
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.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a command injection flaw in the Totolink NR1800X router firmware version 9.1.0u.6279_B20210910. It occurs in the setTracerouteCfg function within the /cgi-bin/cstecgi.cgi file, where the 'command' parameter from a POST request is not properly sanitized before being used in system commands. This allows a remote attacker to inject and execute arbitrary commands on the device. [1, 2]

Impact Analysis

The vulnerability allows remote attackers to execute arbitrary commands on the affected device, which can compromise the device's confidentiality, integrity, and availability. This means attackers could potentially take control of the router, disrupt network services, steal sensitive information, or use the device as a foothold for further attacks. [1]

Mitigation Strategies

No known countermeasures or mitigations have been identified for this vulnerability. It is suggested to replace the affected product as a precautionary measure. [1]

Detection Guidance

This vulnerability can be detected by monitoring and testing the POST requests sent to the endpoint /cgi-bin/cstecgi.cgi, specifically targeting the setTracerouteCfg function with the "command" parameter. You can attempt to send crafted POST requests with injected commands in the "command" parameter to see if the device executes them, indicating the presence of the vulnerability. For example, using curl to send a POST request with a command injection payload: curl -X POST http://<target-ip>/cgi-bin/cstecgi.cgi -d 'setTracerouteCfg=1&command=;id' If the response or device behavior indicates execution of the injected command (like returning user id info), the device is vulnerable. Network monitoring tools can also be used to detect unusual command injection attempts targeting this endpoint. Note that no specific detection commands are provided in the resources, but this approach aligns with the vulnerability details. [1, 2]

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-1327. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart