It is not just CB, the security vulnerability is present in basically all Unity games and applications published in the last 8 years. No know malware uses it but better safe than sorry.
https://unity.com/security/sept-2025-01
Unity software either needs to be rebuilt from source with patched versions of the editor or already built applications can be patched by a special patching tool Unity has released.
https://unity.com/security/sept-2025-01/remediation