Critical Vulnerabilities Expose Solar Farms

Solar farms, equipped with Internet-exposed monitoring devices manufactured by Contec, face significant cybersecurity challenges. The failure to address a critical vulnerability has left hundreds of these devices vulnerable to remote attacks, potentially leading to operational disruptions and unauthorized access. This article highlights the severity of the issue, the risks involved, and emphasizes the urgent need for patching to secure these vital solar facilities.

The Vulnerability and Its Impact:

Researchers from security firm VulnCheck have identified a critical vulnerability, tracked as CVE-2022-29303, affecting Contec’s SolarView devices. This vulnerability, with a severity rating of 9.8 out of 10, enables remote attackers to execute malicious commands, potentially disrupting operations and compromising the security of solar farms. Palo Alto Networks has reported active exploitation of this vulnerability by the Mirai botnet, which further emphasizes the urgency of the situation.

Additionally, another vulnerability, known as CVE-2023-23333, poses a similar risk to SolarView devices. While no active exploits have been reported, the availability of exploit code since February raises concerns about potential future attacks.

Patch Failures and Misinformation:

Despite the availability of patches to address these vulnerabilities, the majority of SolarView devices remain unpatched. VulnCheck’s research reveals that more than two-thirds of the Internet-exposed devices have failed to install the necessary updates, leaving them highly susceptible to exploitation.

One contributing factor to the patch failures is the incorrect descriptions provided for both vulnerabilities. Organizations must ensure accurate information and proper guidance are available to facilitate successful patching.

The Urgency for Action:

The consequences of a successful attack on solar farms can be severe, ranging from operational disruptions to unauthorized access to sensitive systems. It is crucial for organizations using SolarView devices to take immediate action to update their systems with the available patches. Furthermore, they should assess if their devices are exposed to the Internet and implement appropriate configurations to limit access only to internal networks.


The cybersecurity risks facing solar farms due to unpatched vulnerabilities in Contec’s SolarView devices demand immediate attention. Organizations operating these devices must prioritize patching to prevent potential disruptions, unauthorized access, and the exploitation of critical infrastructure. By taking proactive measures, such as patching, network segmentation, and robust monitoring, solar farms can mitigate the risks and ensure the security of their operations.


To safeguard critical infrastructure and protect against cyber threats, it is crucial for organizations to explore secure solutions for monitoring and managing devices in the renewable energy sector. Additionally, we encourage readers to share their experiences with remote work and the challenges faced in securing their operations. By fostering knowledge sharing and collaboration, we can collectively strengthen our cybersecurity defenses and safeguard our critical infrastructure.

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