What is CVE-2024-39816?

CVE-2024-39816 is a high-severity vulnerability in Openatom Openharmony, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2024-09-02.

How severe is CVE-2024-39816?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Openatom Openharmony

CVE-2024-39816

in OpenHarmony v4.1.0 and prior versions allow a local attacker arbitrary code execution in pre-installed apps through out-of-bounds write.

Vulnerability class: Buffer Overflow

Published 2024-09-02 · last modified 2026-06-17.

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:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Openatom Openharmony
Openharmony — versions v4.0.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

gitee.com/openharmony/security/blob/master/zh/security-disclosure/2024/2024-09… (Vendor Advisory)

Frequently asked questions

What is CVE-2024-39816?: CVE-2024-39816 is a high-severity vulnerability in Openatom Openharmony, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2024-09-02.
How severe is CVE-2024-39816?: High severity. CVSS v3 base score is 8.4 out of 10.