What is CVE-2026-34864?

CVE-2026-34864 is a medium-severity vulnerability in Huawei Harmonyos, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2026-04-13.

How severe is CVE-2026-34864?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Buffer overflow in Huawei Harmonyos

CVE-2026-34864

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

Vulnerability class: Buffer Overflow

EPSS: 0.000 (0.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.

Affected products

Huawei Harmonyos — versions 6.0.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

consumer.huawei.com/en/support/bulletin/2026/4/
consumer.huawei.com/en/support/bulletinwearables/2026/4/

Frequently asked questions

What is CVE-2026-34864?: CVE-2026-34864 is a medium-severity vulnerability in Huawei Harmonyos, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2026-04-13.
How severe is CVE-2026-34864?: Medium severity. CVSS v3 base score is 6.8 out of 10.