How severe is CVE-2023-3456?

CVE-2023-3456 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-3456 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3456?

CVE-2023-3456 primarily affects Huawei Emui. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-3456?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-3456 published?

CVE-2023-3456 was published on 2023-07-06 and last updated on 2026-06-17.

CVE-2023-3456

CVE-2023-3456 is a medium-severity vulnerability in Huawei Emui with a CVSS 3.x base score of 5.3. 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-668.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-668
Affected product: Huawei Emui
Published: 2023-07-06
Last modified: 2026-06-17

Description

Vulnerability of kernel raw address leakage in the hang detector module. Successful exploitation of this vulnerability may affect service confidentiality.

Frequently asked questions

What is CVE-2023-3456?: Vulnerability of kernel raw address leakage in the hang detector module. Successful exploitation of this vulnerability may affect service confidentiality.
How severe is CVE-2023-3456?: CVE-2023-3456 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-3456 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3456?: CVE-2023-3456 primarily affects Huawei Emui. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-3456?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3456 published?: CVE-2023-3456 was published on 2023-07-06 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:huawei:emui:12.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:emui:13.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:harmonyos:2.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:harmonyos:2.0.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:harmonyos:2.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:harmonyos:3.0.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:harmonyos:3.1.0:*:*:*:*:*:*:*

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