How severe is CVE-2026-34864?

CVE-2026-34864 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-34864 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-2026-34864?

CVE-2026-34864 affects Huawei Harmonyos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34864?

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

Does CVE-2026-34864 have an EU (EUVD) identifier?

Yes. CVE-2026-34864 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21846.

When was CVE-2026-34864 published?

CVE-2026-34864 was published on 2026-04-13 and last updated on 2026-06-17.

CVE-2026-34864

CVE-2026-34864 is a medium-severity vulnerability in Huawei Harmonyos with a CVSS 3.x base score of 6.8. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21846
Weakness: CWE-119
Affected product: Huawei Harmonyos
Published: 2026-04-13
Last modified: 2026-06-17

Description

Boundary-unlimited vulnerability in the application read module. Impact: Successful exploitation of this vulnerability may affect availability.

Frequently asked questions

What is CVE-2026-34864?: Boundary-unlimited vulnerability in the application read module. Impact: Successful exploitation of this vulnerability may affect availability.
How severe is CVE-2026-34864?: CVE-2026-34864 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-34864 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-2026-34864?: CVE-2026-34864 affects Huawei Harmonyos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34864?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34864 have an EU (EUVD) identifier?: Yes. CVE-2026-34864 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21846.
When was CVE-2026-34864 published?: CVE-2026-34864 was published on 2026-04-13 and last updated on 2026-06-17.

References

Affected products (1)

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

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