CVE-2025-21606: Local Privilege Escalation via Exposed XPC Method Due to Client Verification Failure in stats
First published: Fri Jan 17 2025(Updated: )
stats is a macOS system monitor in for the menu bar. The Stats application is vulnerable to a local privilege escalation due to the insecure implementation of its XPC service. The application registers a Mach service under the name `eu.exelban.Stats.SMC.Helper`. The associated binary, eu.exelban.Stats.SMC.Helper, is a privileged helper tool designed to execute actions requiring elevated privileges on behalf of the client, such as setting fan modes, adjusting fan speeds, and executing the `powermetrics` command. The root cause of this vulnerability lies in the `shouldAcceptNewConnection` method, which unconditionally returns YES (or true), allowing any XPC client to connect to the service without any form of verification. As a result, unauthorized clients can establish a connection to the Mach service and invoke methods exposed by the HelperTool interface. An attacker can exploit this vulnerability to modify the hardware settings of the user’s device and execute arbitrary code with root privileges. This issue has been addressed in version 2.11.21 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Exelban Stats | <2.11.21 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21606?
CVE-2025-21606 has been classified as a local privilege escalation vulnerability.
How do I fix CVE-2025-21606?
To mitigate CVE-2025-21606, update to the latest version of Exelban Stats beyond 2.11.21.
What applications are affected by CVE-2025-21606?
CVE-2025-21606 affects Exelban Stats versions up to and including 2.11.21.
What causes the vulnerability in CVE-2025-21606?
The vulnerability in CVE-2025-21606 is caused by the insecure implementation of its XPC service.
Can CVE-2025-21606 be exploited remotely?
CVE-2025-21606 is not a remote vulnerability; it requires local access for exploitation.
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