CVE-2026-94098
Received Received - Intake

Command Injection in Netcore NBR200V2 Firmware

Publication date: 2026-09-21

Last updated on: 2026-09-21

Assigner: VulDB

Description
A vulnerability was identified in Netcore NBR200V2 1.3.241127.071246. This vulnerability affects unknown code of the file /www/cgi-bin/upgrade of the component Firmware Upgrade CGI Endpoint. Such manipulation of the argument QUERY_STRING leads to command injection. The attack can be executed remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-09-21
Last Modified
2026-09-21
Generated
2026-09-21
AI Q&A
2026-09-21
EPSS Evaluated
N/A
NVD
CVE-2026-94098
EUVD
EUVD-2026-83810

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
netcore nbr200v2 1.3.241127.071246

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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.
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

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Executive Summary

This vulnerability is a command injection flaw in the Netcore NBR200V2 device version 1.3.241127.071246. It exists in the Firmware Upgrade CGI Endpoint at the file path /www/cgi-bin/upgrade. An attacker can manipulate the QUERY_STRING argument to inject and execute arbitrary commands remotely.

Detection Guidance

Detecting this vulnerability requires checking for the presence of Netcore NBR200V2 firmware version 1.3.241127.071246 or similar. Inspect network traffic for unusual commands sent to the /www/cgi-bin/upgrade endpoint, particularly those including QUERY_STRING manipulation. Use tools like curl to test the endpoint for command injection attempts.

Impact Analysis

This vulnerability allows remote attackers to execute arbitrary commands on the affected device. This could lead to unauthorized access, data theft, device takeover, or disruption of services. Since the exploit is publicly available, the risk of exploitation is higher.

Compliance Impact

This vulnerability allows remote command injection via the QUERY_STRING parameter in the Firmware Upgrade CGI Endpoint of Netcore NBR200V2. Such unauthorized remote code execution could lead to unauthorized data access, modification, or exfiltration, which may violate GDPR (data protection) and HIPAA (health data confidentiality) requirements.

Mitigation Strategies

Immediately isolate affected devices from the network to prevent remote exploitation. Disable or restrict access to the /www/cgi-bin/upgrade endpoint if possible. Monitor for suspicious activity and apply network-level protections such as firewalls or IDS rules to block malicious QUERY_STRING inputs. Contact Netcore for official patches or updates.

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