How severe is CVE-2023-34166?

CVE-2023-34166 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-2023-34166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34166?

CVE-2023-34166 primarily affects Huawei Emui. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-34166?

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-2023-34166 published?

CVE-2023-34166 was published on 2023-06-19 and last updated on 2026-06-17.

CVE-2023-34166

CVE-2023-34166 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. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Huawei Emui
Published: 2023-06-19
Last modified: 2026-06-17

Description

Vulnerability of system restart triggered by abnormal callbacks passed to APIs.Successful exploitation of this vulnerability may cause the system to restart.

Frequently asked questions

What is CVE-2023-34166?: Vulnerability of system restart triggered by abnormal callbacks passed to APIs.Successful exploitation of this vulnerability may cause the system to restart.
How severe is CVE-2023-34166?: CVE-2023-34166 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-2023-34166 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34166?: CVE-2023-34166 primarily affects Huawei Emui. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-34166?: 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-2023-34166 published?: CVE-2023-34166 was published on 2023-06-19 and last updated on 2026-06-17.

References

https://consumer.huawei.com/en/support/bulletin/2023/6/

Affected products (4)

cpe:2.3:o:huawei:emui:11.0.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:12.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:12.0.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:13.0.0:*:*:*:*:*:*:*

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