CVE-2025-62147 identifies a missing authorization vulnerability (CWE-862) in the Nik Melnik Realbig software, specifically affecting versions up to 1.1.3. The vulnerability stems from incorrectly configured access control mechanisms that fail to properly verify whether a user has the necessary permissions to perform certain actions. This misconfiguration allows an unauthenticated remote attacker to execute operations that should be restricted, potentially modifying data or system state without authorization. The CVSS 3.1 base score of 5.3 reflects a medium severity, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N). The impact is limited to integrity (I:L) with no confidentiality (C:N) or availability (A:N) impact. No patches or known exploits are currently available, indicating the vulnerability is newly disclosed. The lack of authentication requirement and remote exploitability increase the risk profile, especially for internet-facing deployments of Realbig. Organizations should prioritize assessing their exposure, as unauthorized actions could lead to data tampering or unauthorized configuration changes, undermining trust and operational correctness.

For European organizations, the missing authorization vulnerability in Realbig could lead to unauthorized modification of data or system configurations, potentially disrupting business processes or corrupting critical information. Although confidentiality and availability are not directly impacted, integrity violations can have cascading effects, such as erroneous decision-making or compliance violations. Organizations in sectors relying on Realbig for critical functions—such as finance, healthcare, or government—may face reputational damage or regulatory scrutiny if unauthorized changes occur. The remote and unauthenticated nature of the exploit increases the likelihood of exploitation attempts, especially in environments with public-facing Realbig instances. The absence of known exploits currently provides a window for proactive mitigation, but the medium severity score suggests that ignoring the issue could lead to moderate operational risks. European entities with limited internal security controls or insufficient monitoring may be particularly vulnerable to unnoticed exploitation.

1. Immediately conduct a thorough audit of access control configurations within Realbig deployments to identify and remediate any misconfigurations. 2. Implement strict role-based access control (RBAC) policies ensuring that all sensitive operations require proper authorization checks. 3. Restrict network exposure of Realbig interfaces to trusted internal networks or VPNs to reduce attack surface. 4. Deploy application-layer firewalls or WAFs with rules tailored to detect and block unauthorized access attempts targeting Realbig. 5. Monitor logs and system behavior for unusual activity indicative of unauthorized actions, enabling rapid detection and response. 6. Engage with the vendor Nik Melnik for updates or patches and apply them promptly once available. 7. Consider implementing multi-factor authentication (MFA) around administrative access points to add an additional security layer. 8. Educate system administrators and security teams about the vulnerability specifics to enhance vigilance. 9. If feasible, isolate Realbig instances in segmented network zones to contain potential exploitation impact. 10. Develop and test incident response procedures specific to unauthorized access incidents involving Realbig.