CVE-2026-2620 is a SQL injection vulnerability identified in Huace Monitoring and Early Warning System version 2.2, specifically affecting an unknown functionality within the /Web/SysManage/ProjectRole.aspx file. The vulnerability arises from improper sanitization of the 'ID' parameter, which can be manipulated by remote attackers to inject and execute arbitrary SQL commands on the backend database. This flaw requires no authentication or user interaction, making it remotely exploitable over the network. The CVSS 4.0 base score is 6.9, reflecting a medium severity level with partial impacts on confidentiality, integrity, and availability. The vulnerability could allow attackers to extract sensitive data, modify or delete records, or disrupt system operations. Although no active exploitation in the wild has been reported, proof-of-concept exploit code is publicly available, increasing the likelihood of future attacks. The vendor has not issued any patches or advisories, leaving users exposed. The affected product is typically deployed in monitoring and early warning contexts, often within critical infrastructure or industrial environments, where data integrity and availability are paramount. The lack of vendor response and patch availability necessitates immediate defensive actions by users to mitigate potential risks.

For European organizations, the impact of CVE-2026-2620 could be significant, particularly for those relying on Huace Monitoring and Early Warning System 2.2 in critical infrastructure sectors such as energy, transportation, or environmental monitoring. Successful exploitation could lead to unauthorized access to sensitive monitoring data, manipulation or deletion of critical records, and potential disruption of early warning capabilities. This could compromise operational decision-making, delay incident response, and increase the risk of cascading failures in interconnected systems. Data confidentiality breaches could expose sensitive operational details or personal data, leading to regulatory non-compliance under GDPR. Integrity violations could undermine trust in monitoring outputs, while availability impacts could cause system downtime or degraded performance. The medium severity rating reflects that while the vulnerability is serious, it does not allow full system takeover or widespread disruption without further chaining. However, the ease of remote exploitation without authentication increases the urgency for European organizations to address this threat promptly.

Given the absence of official patches from the vendor, European organizations should implement immediate compensating controls. First, deploy web application firewalls (WAFs) or intrusion prevention systems (IPS) with rules to detect and block SQL injection patterns targeting the 'ID' parameter in /Web/SysManage/ProjectRole.aspx. Second, conduct thorough input validation and sanitization on all user-supplied parameters at the application or proxy level to prevent injection attempts. Third, restrict network access to the affected system by limiting exposure to trusted internal networks or VPNs, reducing the attack surface. Fourth, monitor database query logs and application logs for unusual or unauthorized SQL commands indicative of exploitation attempts. Fifth, consider isolating the vulnerable system within segmented network zones to contain potential breaches. Finally, maintain up-to-date backups of critical data and develop incident response plans specific to potential SQL injection exploitation scenarios. Organizations should also engage with Huace or third-party security vendors to seek or develop patches or mitigations and track any future advisories.