Is CVE-2021-22438 actively exploited?

No active exploitation of CVE-2021-22438 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-22438 be exploited remotely?

Yes. CVE-2021-22438 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-22438?

CVE-2021-22438 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-22438

CRITICAL

CVE-2021-22438

CWE-787Published: August 2, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

There is a Memory Buffer Improper Operation Limit Vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may cause malicious code to be executed.

NVD Source

Technical Analysis

CVE-2021-22438 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.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.