Use After Free in Openharmony

CVE-2025-27128

in OpenHarmony v5.0.3 and prior versions allow a local attacker arbitrary code execution in tcb through use after free.

Vulnerability class: Use-After-Free

EPSS: 0.000 (8.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H.

Affected products

Openharmony — versions v5.0.3

Weakness classification (CWE)

CWE-416 — Use After Free

References

gitee.com/openharmony/security/blob/master/zh/security-disclosure/2025/2025-07…

Frequently asked questions

What is CVE-2025-27128?: CVE-2025-27128 is a high-severity vulnerability in Openharmony, classified under Use After Free. CVSS score: 8.4/10. Published 2025-08-11.
How severe is CVE-2025-27128?: High severity. CVSS v3 base score is 8.4 out of 10.