CVE-2025-12247 identifies an unquoted search path vulnerability in Hasleo Backup Suite versions 5.0 through 5.2, specifically within the HasleoImageMountService and HasleoBackupSuiteService components. An unquoted search path occurs when a Windows service or application executes a program or loads a DLL without enclosing the path in quotes, allowing an attacker to place a malicious executable in a directory that is searched earlier in the path sequence. When the service starts or performs certain operations, it may inadvertently execute the attacker's code with the service's privileges. This vulnerability requires local access with low privileges and does not require user interaction, but the complexity of successfully exploiting it is high due to the need to place malicious files in specific locations and timing execution. The vulnerability impacts confidentiality, integrity, and availability by potentially allowing privilege escalation and arbitrary code execution under the context of the affected service. While no public exploits are currently observed in the wild, proof-of-concept exploits have been made available, increasing the risk of future attacks. The vulnerability has a CVSS v4.0 score of 7.3, reflecting high severity with local attack vector, high complexity, and partial impact on confidentiality, integrity, and availability. The recommended remediation is to upgrade the Hasleo Backup Suite to a version where this vulnerability is patched. In the absence of a patch, organizations should restrict local access to systems running the affected software and monitor for suspicious activity related to service execution paths.

For European organizations, the impact of CVE-2025-12247 can be significant, especially for those relying on Hasleo Backup Suite for critical backup and recovery operations. Successful exploitation could allow an attacker with local access to escalate privileges, potentially gaining administrative control over backup services. This could lead to unauthorized data access, manipulation, or deletion, undermining data integrity and availability. In sectors with stringent data protection regulations such as GDPR, any compromise of backup systems could result in regulatory penalties and loss of customer trust. Additionally, backup systems are often trusted components in IT infrastructure; their compromise could facilitate lateral movement within networks, increasing the risk of broader breaches. The high complexity and local access requirement somewhat limit the threat scope, but insider threats or attackers who have already gained limited access could leverage this vulnerability to deepen their foothold.

1. Upgrade Hasleo Backup Suite to the latest version once the vendor releases a patch addressing CVE-2025-12247. 2. Until a patch is available, restrict local user access to systems running Hasleo Backup Suite, especially limiting write permissions to directories in the service's search path. 3. Implement application whitelisting and endpoint protection solutions to detect and block unauthorized executable files in service directories. 4. Regularly audit service configurations and executable paths to ensure they are properly quoted and secured. 5. Employ strict privilege management to minimize the number of users with local access and administrative rights on backup servers. 6. Monitor system and service logs for unusual activity indicative of exploitation attempts, such as unexpected service restarts or execution of unknown binaries. 7. Educate IT staff about the risks of unquoted search path vulnerabilities and the importance of secure service configurations.