Vulnerability in Huawei Harmonyos

CVE-2025-27521

Vulnerability of improper access permission in the process management module Impact: Successful exploitation of this vulnerability may affect service confidentiality.

Published · last modified .

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.001 (1.0th percentile), scored .

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 trend (30 days)EPSS over the last 30 days for CVE-2025-27521: 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)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-27521?
CVE-2025-27521 is a medium-severity vulnerability in Huawei Harmonyos, classified under Improper Handling of Insufficient Permissions or Privileges. CVSS score: 6.8/10. Published 2025-03-04.
How severe is CVE-2025-27521?
Medium severity. CVSS v3 base score is 6.8 out of 10.
Is CVE-2025-27521 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.