What is CVE-2025-66332?

CVE-2025-66332 is a low-severity vulnerability in Huawei Harmonyos, classified under Download of Code Without Integrity Check. CVSS score: 3.3/10. Published 2025-12-08.

How severe is CVE-2025-66332?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Huawei Harmonyos

CVE-2025-66332

Denial of service (DoS) vulnerability in the office service. 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 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.001 (0.0th percentile), scored 2026-09-25.

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

Affected products

Huawei Harmonyos — versions 5.1.0, 5.0.1, 6.0.0

Weakness classification (CWE)

CWE-494 — Download of Code Without Integrity Check

References

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

Frequently asked questions

What is CVE-2025-66332?: CVE-2025-66332 is a low-severity vulnerability in Huawei Harmonyos, classified under Download of Code Without Integrity Check. CVSS score: 3.3/10. Published 2025-12-08.
How severe is CVE-2025-66332?: Low severity. CVSS v3 base score is 3.3 out of 10.