CVE-2025-62147 identifies a missing authorization vulnerability (CWE-862) in the Nik Melnik Realbig software, affecting versions up to 1.1.3. The vulnerability arises from incorrectly configured access control security levels, allowing unauthorized remote attackers to perform actions that should require authorization. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) indicates that the attack can be launched remotely over the network without any privileges or user interaction, with low attack complexity. The primary impact is on data integrity, as unauthorized modifications or actions could be performed, but confidentiality and availability remain unaffected. No patches or fixes are currently linked, and no known exploits have been reported in the wild, suggesting either limited awareness or exploitation to date. The vulnerability's presence in a network-accessible product with weak access controls poses a risk of unauthorized manipulation of data or system behavior, potentially undermining trust in the affected systems. The lack of authentication requirements means that any attacker with network access to the Realbig service could attempt exploitation, emphasizing the need for immediate attention. Given the nature of the flaw, it is critical for organizations to audit their Realbig deployments, verify access control configurations, and apply any forthcoming patches promptly.

For European organizations, the missing authorization vulnerability in Realbig could lead to unauthorized data modifications or system misuse, impacting the integrity of business-critical information. This can disrupt operations, cause financial losses, or damage reputations, especially in sectors relying on accurate and trustworthy data processing. Since the vulnerability does not affect confidentiality or availability directly, the risk of data leaks or service outages is lower; however, integrity breaches can still have severe downstream effects, such as compliance violations under GDPR if data accuracy is compromised. Organizations in finance, healthcare, and government sectors are particularly sensitive to integrity issues. The ease of exploitation without authentication increases the threat surface, especially for organizations exposing Realbig services to external networks. The absence of known exploits currently provides a window for proactive mitigation, but the potential for future exploitation remains. European entities must prioritize identifying affected systems and strengthening access controls to prevent unauthorized actions that could undermine operational integrity.

1. Immediately audit all Realbig installations to identify affected versions (up to 1.1.3) and assess exposure. 2. Restrict network access to Realbig services using firewalls or network segmentation to limit exposure to trusted internal networks only. 3. Implement strict access control policies at the application and network layers, ensuring that only authorized users and systems can interact with Realbig components. 4. Monitor logs and network traffic for unusual or unauthorized activities targeting Realbig interfaces. 5. Engage with the vendor Nik Melnik for updates or patches addressing this vulnerability and apply them promptly once available. 6. Consider deploying Web Application Firewalls (WAFs) or Intrusion Prevention Systems (IPS) with custom rules to detect and block exploitation attempts. 7. Educate IT and security teams about the vulnerability to ensure rapid response and incident handling. 8. If possible, isolate Realbig services in dedicated environments with minimal privileges to reduce potential impact. 9. Review and enhance overall access control mechanisms beyond default configurations to prevent similar authorization issues in the future.