Netcore NBR200V2 1.3.241127.071246 Firmware Upgrade CGI Endpoint /www/cgi-bin/upgrade QUERY_STRING command injection

Summaryinfo

A vulnerability marked as very critical has been reported in Netcore NBR200V2 1.3.241127.071246. This issue affects some unknown processing of the file /www/cgi-bin/upgrade of the component Firmware Upgrade CGI Endpoint. Performing a manipulation of the argument QUERY_STRING results in command injection. This vulnerability is reported as CVE-2026-94098. The attack is possible to be carried out remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Netcore NBR200V2 1.3.241127.071246. This affects an unknown code of the file /www/cgi-bin/upgrade of the component Firmware Upgrade CGI Endpoint. The manipulation of the argument QUERY_STRING with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at app.notion.com. This vulnerability is uniquely identified as CVE-2026-94098. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. Technical details and a public exploit are known. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/21/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The exploit is shared for download at app.notion.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-83810). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Netcore

Name

• NBR200V2

Version

• 1.3.241127.071246

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Submitinfo

Accepted

• Submit #892991: netcore NBR200V2 V1.3.241127.071246 Command Injection (by FirmHarness)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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