CVE-2026-4840 Details
Description
A security flaw has been discovered in Netcore Power 15AX up to 3.0.0.6938. Affected by this issue is the function setTools of the file /bin/netis.cgi of the component Diagnostic Tool Interface. Performing a manipulation of the argument IpAddr results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
A command injection vulnerability has been identified in the Netcore Power 15AX router, specifically in the firmware version 3.0.0.6938. The issue arises within the diagnostic tool interface, in the 'setTools' function of the '/bin/netis.cgi' file. The vulnerability is due to inadequate input filtering of the 'IpAddr' parameter, which allows for the execution of arbitrary operating system commands with root privileges. This flaw can be exploited remotely, and a public exploit is available.
Users are advised to disable WAN-side management interfaces, restrict management access to trusted IP addresses, use strong authentication credentials, and monitor system logs for suspicious activity. Consider replacing the device with a more secure alternative.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 26, 2026CISA-ADP
Assessed Mar 30, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/fakervsbln/netcore-power15ax-cve | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/?ctiid.353146 | [email protected] | Content Wall |
| https://vuldb.com/?id.353146 | [email protected] | AdvisoryExploitTechnical Description |
| https://vuldb.com/?submit.776127 | [email protected] | Technical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Netcore Power 15AX | All versions |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 26, 2026 | New CVE Received | [email protected] |