CVE-2025-65212
CWE-565Published: January 6, 2026· Updated: Jun 17, 2026
Official 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.
Risk Analysis
The NJHYST HY511 POE core is vulnerable to unauthorized configuration file downloads due to insufficient cookie verification. An attacker can retrieve sensitive credentials from the configuration file to bypass authentication entirely.
No public exploit is known for this remotely exploitable issue, and it is not in the CISA KEV.
Upgrade the device firmware to version 2.1 or later and plugins to 0.1 or later.
Technical Analysis
CVE-2025-65212 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-565)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-65212 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts