Is CVE-2023-21164 actively exploited?

No active exploitation of CVE-2023-21164 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-21164 be exploited remotely?

Yes. CVE-2023-21164 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-21164?

CVE-2023-21164 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-21164

CRITICAL

CVE-2023-21164

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

9.8

CVSS v3.1

Official Description

In DevmemIntMapPMR of devicemem_server.c, there is a possible arbitrary code execution due to a use after free. 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 flaw is a use-after-free vulnerability in the device memory server that could lead to arbitrary code execution. It is rated as critical with a 9.8 CVSS score, allowing for local privilege escalation without user interaction.

There is no known public exploit, and it is not tracked in the CISA KEV. The vulnerability is remotely exploitable.

Recommended Action

Ensure the device is updated with the latest Android security patches.

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-2023-21164 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.