CVE-2025-65530 is a vulnerability identified in the malware de-obfuscation routines of CloudLinux's ai-bolit software prior to version 32.7.4. The root cause is an eval injection vulnerability, where the software unsafely evaluates code derived from scanned files. Specifically, when ai-bolit scans a crafted malicious file, the eval injection allows an attacker to execute arbitrary code with root privileges. This can lead to overwriting arbitrary files on the system, effectively enabling full system compromise. The vulnerability does not require prior authentication or user interaction, making it highly exploitable in automated scanning environments. The lack of a CVSS score indicates this is a newly published vulnerability with limited public data, but the technical details imply a severe risk. No known exploits have been reported in the wild yet, but the potential for damage is significant given the root-level access and file overwrite capability. CloudLinux ai-bolit is commonly used in Linux-based hosting and cloud environments for malware detection and de-obfuscation, making this vulnerability particularly dangerous in multi-tenant or shared hosting infrastructures. The vulnerability was reserved on November 18, 2025, and published on December 12, 2025, with a patch available in version 32.7.4, which should be applied immediately to mitigate risk.

The impact of CVE-2025-65530 on European organizations is potentially severe. Successful exploitation allows attackers to overwrite arbitrary files as root, which can lead to complete system compromise, data destruction, or persistent backdoors. This threatens confidentiality, integrity, and availability of critical systems, especially in hosting providers, cloud services, and enterprises relying on CloudLinux ai-bolit for malware scanning. The root-level access means attackers can bypass most security controls, escalate privileges, and move laterally within networks. European organizations handling sensitive data or providing shared hosting services are particularly vulnerable to data breaches, service outages, and reputational damage. The vulnerability's ease of exploitation without authentication increases the risk of automated attacks. Given Europe's strong regulatory environment (e.g., GDPR), such breaches could also result in significant legal and financial penalties.

To mitigate CVE-2025-65530, organizations should immediately upgrade CloudLinux ai-bolit to version 32.7.4 or later, where the eval injection vulnerability is patched. Until the update is applied, restrict scanning to trusted files only and avoid scanning untrusted or user-uploaded files. Implement strict file integrity monitoring and alerting to detect unauthorized file modifications. Employ application whitelisting and mandatory access controls (e.g., SELinux or AppArmor) to limit the impact of potential exploitation. Regularly audit and monitor logs for suspicious scanning activity or unexpected file changes. Network segmentation can help contain potential breaches. Additionally, review and harden root access policies and ensure backups are current and tested to enable recovery from potential destructive attacks. Engage with CloudLinux support for any additional recommended security configurations specific to ai-bolit.