Successful exploitation of these vulnerabilities could allow attackers to gain unauthorized administrative access using hard-coded credentials, escalate privileges to take full control of the device, modify system settings, disrupt solar energy production, interfere with safety mechanisms, execute arbitrary commands via command injection, cause service disruptions, expose sensitive data, and recreate valid session IDs to access sensitive device functions on connected solar inverter systems due to insecure session ID generation.
The following versions of Cloud Connect Advanced are affected:
Tigo Energy's Cloud Connect Advanced (CCA) device contains hard-coded credentials that allow unauthorized users to gain administrative access. This vulnerability enables attackers to escalate privileges and take full control of the device, potentially modifying system settings, disrupting solar energy production, and interfering with safety mechanisms.
CVE-2025-7768 has been assigned to this vulnerability. A CVSS v3.1 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-2025-7768. 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).
Tigo Energy's CCA is vulnerable to a command injection vulnerability in the /cgi-bin/mobile_api endpoint when the DEVICE_PING command is called, allowing remote code execution due to improper handling of user input. When used with default credentials, this enables attackers to execute arbitrary commands on the device that could cause potential unauthorized access, service disruption, and data exposure.
CVE-2025-7769 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2025-7769. A base score of 8.7 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).
Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API. The session IDs are generated using a predictable method based on the current timestamp, allowing attackers to recreate valid session IDs. When combined with the ability to circumvent session ID requirements for certain commands, this enables unauthorized access to sensitive device functions on connected solar optimization systems.
CVE-2025-7770 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2025-7770. A base score of 8.7 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).
Anthony Rose and Jacob Krasnov of BC Security and Peter Kariuki of Ovanova reported these vulnerabilities to CISA.
Tigo Energy is aware of these vulnerabilities and is actively working on a fix to address them.
Visit Tigo Energy's Help Center for more specific security recommendations.
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as:
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 these vulnerabilities has been reported to CISA at this time.