CVE-2025-15328 is a vulnerability identified in Tanium Enforce versions 2.7.0 and 2.8.0, characterized by improper link resolution before file access, commonly referred to as 'link following'. This issue arises when the software resolves symbolic links or other filesystem links incorrectly prior to accessing files, potentially allowing an attacker to manipulate the link target and gain unauthorized read access to files that should be restricted. The vulnerability requires the attacker to have local access with low privileges and also requires user interaction, such as executing a specific action or triggering a process within the application. The CVSS 3.1 score of 5.0 (medium severity) reflects that the attack vector is local (AV:L), with low attack complexity (AC:L), requiring privileges (PR:L) and user interaction (UI:R). The impact is high on confidentiality (C:H) but does not affect integrity or availability. Tanium Enforce is a widely used endpoint management and compliance tool that integrates with enterprise security operations, meaning that exploitation could lead to unauthorized disclosure of sensitive configuration or compliance data. Although no known exploits are currently reported in the wild, the vulnerability could be leveraged in targeted attacks or insider threat scenarios. The lack of patch links in the provided data suggests that organizations should monitor Tanium’s advisories closely for updates. The improper link resolution flaw is a classic security issue that can be mitigated by proper validation of file paths and secure handling of symbolic links within the application’s codebase.

For European organizations, the primary impact of CVE-2025-15328 lies in the potential unauthorized disclosure of sensitive information managed by Tanium Enforce, such as compliance reports, configuration data, or endpoint security status. This could lead to exposure of confidential corporate or personal data, potentially violating GDPR and other data protection regulations. The requirement for local access and user interaction limits the threat to insider attacks or scenarios where an attacker has already compromised a user account or workstation. However, given Tanium Enforce’s role in security operations, any compromise could undermine trust in endpoint management and compliance monitoring. Organizations in regulated sectors such as finance, healthcare, and critical infrastructure may face increased risks due to the sensitivity of the data involved. The medium severity rating suggests that while the vulnerability is not critical, it should be addressed promptly to prevent escalation or lateral movement within networks.

1. Apply patches or updates from Tanium as soon as they become available to address the improper link resolution vulnerability. 2. Restrict local user permissions on systems running Tanium Enforce to minimize the risk of unauthorized file access. 3. Implement strict access controls and monitoring on endpoints to detect unusual file access patterns or symbolic link manipulations. 4. Educate users about the risks of interacting with untrusted content or executing unexpected actions within Tanium Enforce. 5. Use application whitelisting and endpoint detection and response (EDR) tools to monitor and block suspicious activities related to file system access. 6. Conduct regular audits of Tanium Enforce configurations and logs to identify potential exploitation attempts. 7. Isolate critical systems running Tanium Enforce from less trusted network segments to reduce the attack surface. 8. Coordinate with Tanium support for guidance on secure configuration and best practices to mitigate link following vulnerabilities.