How severe is CVE-2025-66319?

CVE-2025-66319 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-66319 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-2025-66319?

CVE-2025-66319 primarily affects Huawei Harmonyos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-66319?

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

Does CVE-2025-66319 have an EU (EUVD) identifier?

Yes. CVE-2025-66319 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208310.

When was CVE-2025-66319 published?

CVE-2025-66319 was published on 2026-03-05 and last updated on 2026-06-17.

CVE-2025-66319

CVE-2025-66319 is a low-severity vulnerability in Huawei Harmonyos with a CVSS 3.x base score of 3.3. 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-264.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208310
Weakness: CWE-264
Affected product: Huawei Harmonyos
Published: 2026-03-05
Last modified: 2026-06-17

Description

Permission control vulnerability in the resource scheduling module. Impact: Successful exploitation of this vulnerability may affect service integrity.

Frequently asked questions

What is CVE-2025-66319?: Permission control vulnerability in the resource scheduling module. Impact: Successful exploitation of this vulnerability may affect service integrity.
How severe is CVE-2025-66319?: CVE-2025-66319 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-66319 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-2025-66319?: CVE-2025-66319 primarily affects Huawei Harmonyos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-66319?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-66319 have an EU (EUVD) identifier?: Yes. CVE-2025-66319 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208310.
When was CVE-2025-66319 published?: CVE-2025-66319 was published on 2026-03-05 and last updated on 2026-06-17.

References

Affected products (2)

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

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