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.

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

EPSS: 0.001 (4.0th percentile) — read the EPSS interpretation.

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.

Affected products

Huawei Harmonyos — versions 5.1.0

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

psirt@huawei.com (Vendor Advisory)

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.