RCE in Netcore Power 15ax
CVE-2026-4840
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.038 (89.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.105 · newest: 0.038 · change: -0.066
Affected products
- Netcore Power 15ax — versions 3.0.0.6938
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/fakervsbln/netcore-power15ax-cve (exploit)
Frequently asked questions
- What is CVE-2026-4840?
- CVE-2026-4840 is a high-severity vulnerability in Netcore Power 15ax, classified under Command Injection. CVSS score: 8.8/10. Published 2026-03-26.
- How severe is CVE-2026-4840?
- High severity. CVSS v3 base score is 8.8 out of 10.