How severe is CVE-2021-22380?

CVE-2021-22380 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2021-22380 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22380?

CVE-2021-22380 affects Huawei Emui. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22380?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-22380 published?

CVE-2021-22380 was published on 2021-06-30 and last updated on 2026-06-17.

CVE-2021-22380

CVE-2021-22380 is a critical-severity vulnerability in Huawei Emui with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Huawei Emui
Published: 2021-06-30
Last modified: 2026-06-17

Description

There is a Cleartext Transmission of Sensitive Information Vulnerability in Huawei Smartphone. Successful exploitation of this vulnerability may affect service confidentiality and availability.

Frequently asked questions

What is CVE-2021-22380?: There is a Cleartext Transmission of Sensitive Information Vulnerability in Huawei Smartphone. Successful exploitation of this vulnerability may affect service confidentiality and availability.
How severe is CVE-2021-22380?: CVE-2021-22380 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2021-22380 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22380?: CVE-2021-22380 affects Huawei Emui. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22380?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-22380 published?: CVE-2021-22380 was published on 2021-06-30 and last updated on 2026-06-17.

References

https://consumer.huawei.com/en/support/bulletin/2021/5/

Affected products (1)

cpe:2.3:o:huawei:emui:9.1.0:*:*:*:*:*:*:*

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