CVE-2025-21606

Local Privilege Escalation via Exposed XPC Method Due to Client Verification Failure in stats

Description

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.

Category

8.7
CVSS
Severity: High
CVSS 4.0 •
EPSS 0.06%
Affected: exelban stats
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-21606?
CVE-2025-21606 has been scored as a high severity vulnerability.
How to fix CVE-2025-21606?
To fix CVE-2025-21606, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21606 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21606 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21606?
CVE-2025-21606 affects exelban stats.
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