How severe is CVE-2025-66330?

CVE-2025-66330 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2025-66330 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66330?

CVE-2025-66330 primarily affects Huawei Harmonyos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-66330?

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

Does CVE-2025-66330 have an EU (EUVD) identifier?

Yes. CVE-2025-66330 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201673.

When was CVE-2025-66330 published?

CVE-2025-66330 was published on 2025-12-08 and last updated on 2026-06-17.

CVE-2025-66330

CVE-2025-66330 is a medium-severity vulnerability in Huawei Harmonyos with a CVSS 3.x base score of 4.9. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201673
Weakness: CWE-200
Affected product: Huawei Harmonyos
Published: 2025-12-08
Last modified: 2026-06-17

Description

App lock verification bypass vulnerability in the file management app. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

Frequently asked questions

What is CVE-2025-66330?: App lock verification bypass vulnerability in the file management app. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
How severe is CVE-2025-66330?: CVE-2025-66330 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2025-66330 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66330?: CVE-2025-66330 primarily affects Huawei Harmonyos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-66330?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-66330 have an EU (EUVD) identifier?: Yes. CVE-2025-66330 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201673.
When was CVE-2025-66330 published?: CVE-2025-66330 was published on 2025-12-08 and last updated on 2026-06-17.

References

https://consumer.huawei.com/en/support/bulletin/2025/12/

Affected products (3)

cpe:2.3:o:huawei:harmonyos:5.0.1:*:*:*:*:*:*:*
cpe:2.3:o:huawei:harmonyos:5.1.0:*:*:*:*:*:*:*
cpe:2.3:o:huawei:harmonyos:6.0.0:*:*:*:*:*:*:*

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