CVE-2025-65212
9.8 · CRITICALOverview
CVE-2025-65212 is a critical-severity vulnerability affecting njhyst hy511_firmware. It was published on January 6, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An issue was discovered in NJHYST HY511 POE core before 2.1 and plugins before 0.1. The vulnerability stems from the device's insufficient cookie verification, allowing an attacker to directly request the configuration file address and download the core configuration file without logging into the device management backend. By reading the corresponding username and self-decrypted MD5 password in the core configuration file, the attacker can directly log in to the backend, thereby bypassing the front-end backend login page.
Remediation
Check the references section for vendor advisories and patches from njhyst. Update hy511_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 |
|---|---|---|---|
| njhyst | hy511_firmware | >= 0, < 2.1 | Affected |
Frequently Asked Questions
What is CVE-2025-65212?
CVE-2025-65212 is a critical-severity vulnerability affecting njhyst hy511_firmware. It was published on January 6, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-65212?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-65212?
Check the references section for vendor advisories and patches from njhyst. Update hy511_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-2025-65212?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-65212 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.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.