CVE-2021-22394

Description

There is a buffer overflow vulnerability in smartphones. Successful exploitation of this vulnerability may cause DoS of the apps during Multi-Screen Collaboration.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.27%
Vendor Advisory huawei.com Vendor Advisory harmonyos.com
Affected: Huawei EMUI
Affected: Huawei Magic UI
Affected: Huawei HarmonyOS
Published at:
Updated at:

References

Link Tags
https://consumer.huawei.com/en/support/bulletin/2021/7/ vendor advisory
https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202108-0000001181125881 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-22394?
CVE-2021-22394 has been scored as a critical severity vulnerability.
How to fix CVE-2021-22394?
To fix CVE-2021-22394, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-22394 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-22394 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-22394?
CVE-2021-22394 affects Huawei EMUI, Huawei Magic UI, Huawei HarmonyOS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.