Use After Free in Openharmony

CVE-2026-28733

in OpenHarmony v6.0 and prior versions allow a local attacker arbitrary code execution.

Vulnerability class: Use-After-Free

EPSS: 0.000 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

Affected products

Openharmony — versions v5.0.3

Weakness classification (CWE)

CWE-416 — Use After Free

References

scy@openharmony.io

Frequently asked questions

What is CVE-2026-28733?: CVE-2026-28733 is a medium-severity vulnerability in Openharmony, classified under Use After Free. CVSS score: 6.5/10. Published 2026-05-19.
How severe is CVE-2026-28733?: Medium severity. CVSS v3 base score is 6.5 out of 10.