How severe is CVE-2020-9158?

CVE-2020-9158 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-9158 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9158?

CVE-2020-9158 primarily affects Huawei Emui. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-9158?

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

When was CVE-2020-9158 published?

CVE-2020-9158 was published on 2021-07-01 and last updated on 2026-06-17.

CVE-2020-9158

CVE-2020-9158 is a high-severity vulnerability in Huawei Emui with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Huawei Emui
Published: 2021-07-01
Last modified: 2026-06-17

Description

There is a Missing Cryptographic Step vulnerability in Huawei Smartphone. Successful exploitation of this vulnerability may cause DoS of Samgr.

Frequently asked questions

What is CVE-2020-9158?: There is a Missing Cryptographic Step vulnerability in Huawei Smartphone. Successful exploitation of this vulnerability may cause DoS of Samgr.
How severe is CVE-2020-9158?: CVE-2020-9158 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-9158 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9158?: CVE-2020-9158 primarily affects Huawei Emui. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-9158?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-9158 published?: CVE-2020-9158 was published on 2021-07-01 and last updated on 2026-06-17.

References

https://consumer.huawei.com/en/support/bulletin/2021/1/

Affected products (13)

cpe:2.3:o:huawei:emui:8.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:8.2:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:9.1.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:9.1.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:10.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:10.1.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:10.1.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:magic_ui:2.1.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:magic_ui:3.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:magic_ui:3.1.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:magic_ui:3.1.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:magic_ui:4.0.0:*:*:*:*:*:*:*

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