CVE-2026-101076
Received Received - Intake

OS Command Injection in Netcore NR289-GE Router

Publication date: 2026-09-28

Last updated on: 2026-09-28

Assigner: VulDB

Description
A vulnerability was detected in Netcore NR289-GE 1.4.5102. This affects the function system of the file /set_ntp_server_ip.cgi of the component CGI Handler. The manipulation of the argument ntp_ip results in os command injection. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-28
Last Modified
2026-09-28
Generated
2026-09-28
AI Q&A
2026-09-28
EPSS Evaluated
N/A
NVD
CVE-2026-101076
EUVD
EUVD-2026-88317

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
netcore nr289-ge 1.4.5102

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
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.
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.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

CVE-2026-101076 is an OS command injection flaw in the Netcore NR289-GE router firmware version V1.4.5102. It exists in the /set_ntp_server_ip.cgi endpoint where the ntp_ip parameter is passed directly to a system() function without validation. Attackers can send a crafted POST request with a malicious ntp_ip value to execute arbitrary commands on the device.

Detection Guidance
  • Check for suspicious POST requests to /set_ntp_server_ip.cgi or /x.ico/set_ntp_server_ip.cgi with unusual ntp_ip parameters.
  • Inspect network traffic for commands like echo or file writes in ntp_ip values.
  • Look for unexpected files in /tmp/ such as /tmp/pn which may indicate exploitation.
  • Use curl to test the endpoint: curl -X POST http://<device_ip>/set_ntp_server_ip.cgi -d 'ntp_ip=";echo test>/tmp/test;";mac=001122334455'
Impact Analysis

This vulnerability allows remote attackers to execute arbitrary commands with root privileges on the affected router. An attacker could gain full control over the device, install malware, exfiltrate data, or use it as a pivot point to attack other systems on the network. The exploit is publicly available and can be launched without authentication.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA by enabling unauthorized access to personal or health data stored on or transmitted through the router. Compromised routers may violate data protection requirements for confidentiality, integrity, and availability of sensitive information.

Mitigation Strategies
  • Immediately disconnect the affected Netcore NR289-GE device from the network to prevent remote exploitation.
  • Apply firmware updates if available from the vendor. If no updates exist, consider replacing the device.
  • Block external access to the web interface of the router via firewall rules.
  • Monitor for signs of compromise such as unusual files in /tmp/ or unexpected network activity.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-101076. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart