What is CVE-2026-34855?

CVE-2026-34855 is a medium-severity vulnerability in Huawei Emui, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2026-04-13.

How severe is CVE-2026-34855?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Improper input validation in Huawei Emui

CVE-2026-34855

Out-of-bounds write vulnerability in the kernel module. Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-04-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (0.9th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: -0.000

Affected products

Huawei Emui — versions 15.0.0, 14.2.0, 14.0.0
Huawei Harmonyos — versions 6.0.0, 5.1.0, 4.3.1

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

consumer.huawei.com/en/support/bulletin/2026/4/ (Vendor Advisory)

Frequently asked questions

What is CVE-2026-34855?: CVE-2026-34855 is a medium-severity vulnerability in Huawei Emui, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2026-04-13.
How severe is CVE-2026-34855?: Medium severity. CVSS v3 base score is 5.7 out of 10.