A newly disclosed critical vulnerability in Hunt Electronics’ hybrid DVRs has left thousands of surveillance systems dangerously exposed, with administrator credentials accessible in plaintext to anyone on the internet.
Security researchers have assigned this flaw the identifier CVE-2025-6561, and it carries a maximum CVSS severity score of 9.8, underscoring the urgent need for immediate action from affected users.
Critical Exposure: What Happened?
The vulnerability specifically impacts Hunt Electronics’ HBF-09KD and HBF-16NK hybrid DVR models running firmware version V3.1.67_1786 BB11115 and earlier.
According to multiple security advisories, unauthenticated remote attackers can directly retrieve the system’s configuration file from a vulnerable device.
| CVE ID | CVSS Score | Affected Models | Description |
| CVE-2025-6561 | 9.8 | HBF-09KD, HBF-16NK | Exposure of Sensitive Information: Unauthenticated remote access to config file with plaintext admin credentials |
This file contains administrator credentials stored in plaintext, meaning attackers do not need to log in or bypass any authentication mechanisms to obtain full administrative access.
Once in possession of these credentials, an attacker could:
- Take complete control of the DVR system
- Manipulate or disable surveillance feeds
- Use the compromised DVR as a launchpad for further attacks within the network
- Exfiltrate sensitive video footage or other system data
This vulnerability represents a severe threat to organizations relying on these DVRs for physical security.
The exposure of administrator credentials not only jeopardizes the integrity of surveillance operations but also raises the risk of broader network compromise if the DVR is connected to internal systems.
The flaw’s ease of exploitation—requiring no authentication—further amplifies the risk.
Remediation and Recommendations
Hunt Electronic has released a patched firmware version (V3.1.70_1806 BB50604 or later) to address this vulnerability.
Users are strongly urged to update their devices immediately. Additional recommended actions include:
- Isolating affected DVRs from public networks
- Disabling remote access until patched
- Changing all administrator passwords after patching
- Monitoring systems for unauthorized access attempts
Failure to update leaves systems open to unauthorized control, surveillance manipulation, and potential lateral movement by attackers within organizational networks.
The CVE-2025-6561 vulnerability in Hunt Electronic DVRs is a stark reminder of the importance of secure credential storage and timely patching.
Organizations using affected models should prioritize remediation to prevent potentially catastrophic breaches of their surveillance infrastructure.
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