What is CVE-2024-51521?

CVE-2024-51521 is a medium-severity vulnerability in Huawei Harmonyos, classified under Improper Privilege Management. CVSS score: 5.7/10. Published 2024-11-05.

How severe is CVE-2024-51521?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Privilege escalation in Huawei Harmonyos

CVE-2024-51521

Input parameter verification vulnerability in the background service module Impact: Successful exploitation of this vulnerability may affect availability.

Vulnerability class: Privilege Escalation

Published 2024-11-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.001 (1.0th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% 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 5.0.0

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

consumer.huawei.com/en/support/bulletin/2024/11/ (Vendor Advisory)

Frequently asked questions

What is CVE-2024-51521?: CVE-2024-51521 is a medium-severity vulnerability in Huawei Harmonyos, classified under Improper Privilege Management. CVSS score: 5.7/10. Published 2024-11-05.
How severe is CVE-2024-51521?: Medium severity. CVSS v3 base score is 5.7 out of 10.