Is CVE-2023-21217 actively exploited?

No active exploitation of CVE-2023-21217 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-21217 be exploited remotely?

Yes. CVE-2023-21217 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-21217?

CVE-2023-21217 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-21217

CRITICAL

CVE-2023-21217

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

9.8

CVSS v3.1

Official Description

In PMRWritePMPageList of TBD, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

NVD Source

Risk Analysis

An integer overflow leads to an out-of-bounds write, potentially allowing for local privilege escalation. The CVSS score of 9.8 indicates a critical security risk.

No public exploit is known, and it is not in the CISA KEV. It is remotely exploitable.

Recommended Action

Apply the latest Android security updates.

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-2023-21217 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.