Use After Free in Huawei Harmonyos

CVE-2025-66326

Race condition vulnerability in the audio module. Impact: Successful exploitation of this vulnerability may affect availability.

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (0.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 0th percentile — 0.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-66326: held from 0.001 to 0.001.

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-66326?
CVE-2025-66326 is a medium-severity vulnerability in Huawei Harmonyos, classified under Use After Free. CVSS score: 6.7/10. Published 2025-12-08.
How severe is CVE-2025-66326?
Medium severity. CVSS v3 base score is 6.7 out of 10.