Preface: VMOS is a virtual machine app that runs on Android, which can run another Android OS as the guest operating system. Users can optionally run the guest Android VM as a rooted Android OS. The VMOS guest Android operating system has access to the Google Play Store and other Google apps.

Background: It comes down to Android 13 featuring better handling of virtualization. Android 13 supports a common hypervisor in the form of KVM — a kernel-based virtual machine. VMOS Lets You Run a Virtual Android Machine on your Phone. CAP_NET_ADMIN is in any user or network namespace. If VMOS also relies on namespaces architecture. Therefore, the consequence of the vulnerability will be happened. It is a critical vulnerability.
It comes down to Android 13 featuring better handling of virtualization. Android 13 supports a common hypervisor in the form of KVM — a kernel-based virtual machine.
As a result, the consequences of the vulnerability occur. This vulnerability is the same as CVE-2023-21250, which is a critical level vulnerability.

Vulnerability details: Since official announcement did not provided any details on CVE-2023-21250. However, my speculation believed that CVE-2023-21250 and CVE-2023-2136 may be same as vulnerability shown in attached diagram.

Official announcement: For details, please refer to the link – https://source.android.com/docs/security/bulletin/2023-07-01