What is CVE-2025-66329?

CVE-2025-66329 is a medium-severity vulnerability in Huawei Emui, classified under CWE-264. CVSS score: 4.0/10. Published 2025-12-08.

How severe is CVE-2025-66329?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Vulnerability in Huawei Emui

CVE-2025-66329

Permission control vulnerability in the window management module. Impact: Successful exploitation of this vulnerability may affect availability.

Published 2025-12-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.001 (0.3th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 0th percentile — 0.3% 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 4.3.1, 4.3.0, 4.2.0

Weakness classification (CWE)

CWE-264

References

consumer.huawei.com/en/support/bulletin/2025/12/ (Vendor Advisory)
consumer.huawei.com/en/support/bulletinvision/2026/6/

Frequently asked questions

What is CVE-2025-66329?: CVE-2025-66329 is a medium-severity vulnerability in Huawei Emui, classified under CWE-264. CVSS score: 4.0/10. Published 2025-12-08.
How severe is CVE-2025-66329?: Medium severity. CVSS v3 base score is 4.0 out of 10.