Vulnerability in Huawei Harmonyos

CVE-2025-54634

Vulnerability of improper processing of abnormal conditions in huge page separation. Impact: Successful exploitation of this vulnerability may affect availability.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H.

EPSS exploit prediction

EPSS: 0.001 (0.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 0th percentile — 0.4% 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-2025-54634: 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-2025-54634?
CVE-2025-54634 is a high-severity vulnerability in Huawei Harmonyos, classified under Improper Handling of Exceptional Conditions. CVSS score: 8.0/10. Published 2025-08-06.
How severe is CVE-2025-54634?
High severity. CVSS v3 base score is 8.0 out of 10.
Is CVE-2025-54634 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.