Burk Technology ARC Solo
1. EXECUTIVE SUMMARY
- CVSS v4 9.3
- ATTENTION: Exploitable remotely/Low attack complexity
- Vendor: Burk Technology
- Equipment: ARC Solo
- Vulnerability: Missing Authentication for Critical Function
2. RISK EVALUATION
Successful exploitation of this vulnerability could result in an attacker gaining access to the device, locking out authorized users, or disrupting operations.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following version of ARC Solo, a monitoring and control device primariliy used in broadcasting, is affected:
- ARC Solo: Versions prior to v1.0.62
3.2 VULNERABILITY OVERVIEW
3.2.1 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306
The device's password change mechanism can be utilized without proper authentication procedures, allowing an attacker to take over the device. A password change request can be sent directly to the device's HTTP endpoint without providing valid credentials. The system does not enforce proper authentication or session validation, allowing the password change to proceed without verifying the request's legitimacy.
CVE-2025-5095 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2025-5095. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).
3.3 BACKGROUND
- CRITICAL INFRASTRUCTURE SECTORS: Communications
- COUNTRIES/AREAS DEPLOYED: Worldwide
- COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Souvik Kandar of MicroSec (microsec.io) reported this vulnerability to CISA.
4. MITIGATIONS
Burk Technology recommends users update their ARC Solo devices to Version v1.0.62 or later. The upgrade can be downloaded from the Burk Technology website.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:
- Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
- Locate control system networks and remote devices behind firewalls and isolating them from business networks.
- When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.
5. UPDATE HISTORY
- August 7, 2025: Initial Publication
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