What is CVE-2025-54630?

CVE-2025-54630 is a medium-severity vulnerability in Huawei Harmonyos, classified under Heap-based Buffer Overflow. CVSS score: 6.8/10. Published 2025-08-06.

How severe is CVE-2025-54630?

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

Buffer overflow in Huawei Harmonyos

CVE-2025-54630

:Vulnerability of insufficient data length verification in the DFA module. Impact: Successful exploitation of this vulnerability may affect availability.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Huawei Harmonyos — versions 5.0.1, 4.3.0

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

psirt@huawei.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-54630?: CVE-2025-54630 is a medium-severity vulnerability in Huawei Harmonyos, classified under Heap-based Buffer Overflow. CVSS score: 6.8/10. Published 2025-08-06.
How severe is CVE-2025-54630?: Medium severity. CVSS v3 base score is 6.8 out of 10.