CVE-2026-0924 is a vulnerability classified under CWE-362 (Race Condition) affecting BuhoCleaner version 1.15.2, a macOS cleaning utility developed by Dr.Buho. The vulnerability stems from an insecure XPC (Cross Process Communication) service that improperly synchronizes access to shared resources, allowing concurrent execution paths to interfere with each other. This race condition can be exploited by a local, unprivileged user to escalate privileges to root by invoking insecure functions exposed by the XPC service. The attack does not require user interaction but does require local access with low privileges. The CVSS 4.0 vector (AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N) indicates that the attack is local with low complexity, partial authentication, and no user interaction, but results in high impact on confidentiality, integrity, and availability. No patches or known exploits are currently publicly available, but the vulnerability is published and should be considered a high risk. The root cause is improper synchronization in concurrent execution, a classic race condition that can lead to privilege escalation by manipulating timing windows in the XPC service's operations. Organizations using BuhoCleaner 1.15.2 on macOS systems should be aware of this threat and prepare to apply fixes once released.

The primary impact of CVE-2026-0924 is local privilege escalation, allowing an unprivileged user to gain root access on affected macOS systems running BuhoCleaner 1.15.2. This compromises system confidentiality, integrity, and availability, as an attacker with root privileges can access sensitive data, modify system configurations, install persistent malware, or disrupt system operations. For European organizations, especially those with macOS endpoints running BuhoCleaner, this vulnerability increases the risk of insider threats or lateral movement by attackers who gain initial local access. Critical infrastructure, government agencies, and enterprises with sensitive data are at heightened risk due to potential full system compromise. The lack of known exploits in the wild currently limits immediate widespread impact, but the vulnerability's high severity and ease of exploitation make it a significant concern once exploit code becomes available. The impact is exacerbated in environments where local user accounts are numerous or less strictly controlled.

1. Monitor Dr.Buho's official channels for patches addressing CVE-2026-0924 and apply updates promptly once available. 2. Until patches are released, restrict local user access on macOS systems running BuhoCleaner 1.15.2 by enforcing least privilege principles and disabling unnecessary local accounts. 3. Use macOS security features such as System Integrity Protection (SIP) and Endpoint Detection and Response (EDR) tools to detect suspicious privilege escalation attempts. 4. Audit and monitor logs related to XPC service usage and privilege escalation activities to identify potential exploitation attempts early. 5. Consider temporarily uninstalling or disabling BuhoCleaner if it is not essential, to eliminate the attack surface. 6. Educate system administrators and users about the risks of local privilege escalation and the importance of reporting unusual system behavior. 7. Implement strict access controls and segmentation to limit the impact of any local compromise. 8. Review and harden local user account policies and password management to reduce the likelihood of unauthorized local access.