Is CVE-2023-21215 actively exploited?

No active exploitation of CVE-2023-21215 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-21215 be exploited remotely?

Yes. CVE-2023-21215 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-21215?

CVE-2023-21215 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-21215

CRITICAL

CVE-2023-21215

NVD-CWE-noinfoPublished: December 4, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In DevmemIntAcquireRemoteCtx of devicemem_server.c, there is a possible arbitrary code execution due to a race condition. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.

NVD Source

Risk Analysis

This vulnerability involves a race condition in the device memory server that could allow for arbitrary code execution. Given the CVSS score of 9.8, this is a critical flaw that enables local privilege escalation within the kernel without requiring user interaction.

There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog. It is remotely exploitable due to the network attack vector and low complexity.

Recommended Action

Users should apply the latest security updates provided by Google for the Android platform to address this kernel-level issue.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-21215 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.