CVE-2026-31847
8.8 · HIGHOverview
CVE-2026-31847 is a high-severity vulnerability affecting nexxtsolutions nebula300plus_firmware. It was published on March 23, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Hidden functionality in the /goform/setSysTools endpoint in Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 allows remote enablement of a Telnet service. By sending a crafted POST request with parameters such as telnetManageEn=true and telnetPwd, an authenticated attacker can activate a Telnet service on port 23.
Remediation
Check the references section for vendor advisories and patches from nexxtsolutions. Update nebula300plus_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| nexxtsolutions | nebula300plus_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2026-31847?
CVE-2026-31847 is a high-severity vulnerability affecting nexxtsolutions nebula300plus_firmware. It was published on March 23, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-31847?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-31847?
Check the references section for vendor advisories and patches from nexxtsolutions. Update nebula300plus_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-31847?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-31847 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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