Use After Free in Huawei Harmonyos

CVE-2025-54635

Vulnerability of returning released pointers in the distributed notification service. Impact: Successful exploitation of this vulnerability may affect availability.

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.001 (3.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.2% 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-2025-54635: 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-2025-54635?
CVE-2025-54635 is a medium-severity vulnerability in Huawei Harmonyos, classified under Use After Free. CVSS score: 5.9/10. Published 2025-08-06.
How severe is CVE-2025-54635?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2025-54635 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.