What is CVE-2025-53173?

CVE-2025-53173 is a medium-severity vulnerability in Huawei Harmonyos, classified under Stack-based Buffer Overflow. CVSS score: 5.3/10. Published 2025-07-07.

How severe is CVE-2025-53173?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Buffer overflow in Huawei Harmonyos

CVE-2025-53173

Stack overflow risk when vector images are parsed during file preview Impact: Successful exploitation of this vulnerability may affect the file preview function.

Vulnerability class: Buffer Overflow

Published 2025-07-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (10.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Huawei Harmonyos — versions 5.1.0, 5.0.1

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

consumer.huawei.com/en/support/bulletin/2025/7/ (Vendor Advisory)

Frequently asked questions

What is CVE-2025-53173?: CVE-2025-53173 is a medium-severity vulnerability in Huawei Harmonyos, classified under Stack-based Buffer Overflow. CVSS score: 5.3/10. Published 2025-07-07.
How severe is CVE-2025-53173?: Medium severity. CVSS v3 base score is 5.3 out of 10.