Live Exposure Defense: From CVE to Confirmed Exposure in 12 Hours – See more

Back
New CVE Detected

CVE-2026-101076 – Unauthenticated OS Command Injection (RCE) – Netcore NR289-GE Router Firmware 1.4.

Be the first to know when new zero-days emerge:

Subscribe to Email Alerts
Subscribe to RSS Feed

Summary

CVE-2026-101076 is a critical, unauthenticated OS command injection vulnerability in the CGI handler of the Netcore NR289-GE router, firmware version 1.4.5102. The set_ntp_server_ip.cgi script fails to sanitize the ntp_ip parameter before passing it to a system call, allowing a remote, unauthenticated attacker to execute arbitrary operating system commands on the device. The vulnerability has been assigned a maximum CVSS v3.1 base score of 10.0.

Technical details

  • Root cause: The CGI endpoint /set_ntp_server_ip.cgi passes the attacker-controlled ntp_ip parameter directly into a system-level command (function system) without input validation or sanitization.
  • Trigger conditions: Sending a crafted HTTP request to the set_ntp_server_ip.cgi endpoint with shell metacharacters embedded in the ntp_ip parameter.
  • Attack vector: Network-based; the endpoint is reachable without any authentication and requires no user interaction.
  • Impact: Full compromise of confidentiality, integrity, and availability of the device — an attacker can execute arbitrary commands with the privileges of the CGI process, potentially leading to complete device takeover, pivoting into the internal network, or use of the router as part of a botnet.
  • A public proof-of-concept exploit is available.

Affected software

  • Netcore NR289-GE — firmware version 1.4.5102

Severity

  • CVSS v3.1 Base Score: 10.0 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: No official vendor patch is currently available; the vendor was contacted about this disclosure but has not responded.
  • Workarounds/network mitigations (no patch available):
    • Restrict or disable remote/WAN-facing management access to the router’s web/CGI interface.
    • Block external access to the device’s HTTP(S) management ports at the network perimeter or firewall.
    • Segment the router’s management interface from untrusted networks (e.g., place it on an isolated management VLAN).
    • Monitor for anomalous requests to /set_ntp_server_ip.cgi or unexpected outbound connections from the device.
    • Consider replacing or retiring the affected device if no vendor fix becomes available.

References

Are you exposed?

Get a free report of your organization’s exposure to this CVE and threat

  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
Get Exposure Report

How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

Are you exposed?

Get a free report of your organization’s exposure to this CVE and threat

  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
Get Exposure Report
Close

Subscribe to Threat Center RSS

Copy/paste the link below into your preferred RSS reader or follow these instructions to subscribe to Slack alerts.

Open RSS feedSlack setup instructions

Close

Get Real-Time CVE Alerts to Your Email

Be the first to know when new zero-days emerge