Is CVE-2021-22426 being actively exploited?

CVE-2021-22426 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2021-22426?

CVE-2021-22426 has a CVSS 3.1 base score of 9.8 (CRITICAL).

CVE-2021-22426

CRITICAL · CVSS 9.8EPSS 0.9%EU EUVD

There is a memory address out of bounds in smartphones. Successful exploitation of this vulnerability may cause malicious code to be executed.

Key facts

CVSS score: 9.8 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-119
EPSS score: 0.9% (58th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2021-9572)
Published: February 25, 2022
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-9572 in the EU Vulnerability Database. Last updated in EUVD on August 3, 2024.

View on the EU Vulnerability Database

Affected products

huawei / emui
huawei / harmonyos
huawei / magic ui

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Huawei Mate 40 Pro (M40 pro) with EMUI 11.0 - Huawei Device Co., Ltd. - Common Criteria OCSI/CERT/ATS/10/2020/RC - active
Huawei Mobile Devices (P40 series) with EMUI 11.0 - Huawei Device Co., Ltd. - Common Criteria OCSI/CERT/ATS/06/2020/RC - active

References

https://consumer.huawei.com/en/support/bulletin/2021/6/(Vendor Advisory)
https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202107-0000001170634565(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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