CVE-2025-15324 is a vulnerability identified in Tanium Engage, a platform used for endpoint management and security operations. The issue is categorized as 'Improper Link Resolution Before File Access' or 'link following', where the software incorrectly resolves symbolic links or shortcuts before accessing files. This can allow an attacker with limited privileges to manipulate the file system access path, potentially causing the application to read or write to unintended locations. The vulnerability affects versions 1.3.0 and 1.6.0 of Tanium Engage. According to the CVSS 3.1 vector (6.6), the attack vector is local (AV:L), requiring low attack complexity (AC:L), and privileges (PR:L), with user interaction (UI:R). The scope is unchanged (S:U), and the impact is high on integrity (I:H) and availability (A:H), but no impact on confidentiality (C:N). This means an attacker can alter or disrupt system files or processes, potentially leading to denial of service or unauthorized modification of critical files. Tanium has addressed the issue, although no specific patch links are provided in the data. No known exploits are reported in the wild, indicating the vulnerability is not yet actively exploited but remains a risk. The flaw stems from improper handling of symbolic links or shortcuts, which is a common vector for privilege escalation or file system manipulation attacks in endpoint management software.

For European organizations, especially those relying on Tanium Engage for endpoint security and management, this vulnerability poses a risk of unauthorized modification or disruption of critical system files. The impact on integrity and availability could lead to compromised endpoint stability, potential denial of service, or manipulation of security configurations. This is particularly concerning for sectors with high security requirements such as finance, healthcare, energy, and government agencies. The requirement for local access and user interaction reduces the likelihood of widespread remote exploitation but does not eliminate the risk in environments where attackers can gain foothold or trick users into interaction. Disruption of endpoint management tools can hinder incident response and security monitoring, increasing the risk of further compromise. The absence of known exploits suggests a window of opportunity for defenders to patch and mitigate before active exploitation occurs.

European organizations should prioritize updating Tanium Engage to versions beyond 1.6.0 where the vulnerability is addressed. In the absence of immediate patches, implement strict access controls to limit local user privileges and restrict the ability to create or manipulate symbolic links. Employ application whitelisting and endpoint protection solutions to monitor and block suspicious file system activities related to link following. Educate users about the risks of interacting with untrusted prompts or files that could trigger exploitation. Conduct thorough audits of endpoint configurations to detect anomalous symbolic link usage. Additionally, segment critical systems to reduce the impact of potential local exploits and maintain robust backup and recovery procedures to restore integrity and availability if disruption occurs. Engage with Tanium support for any available patches or workarounds and monitor security advisories for updates.