What is CVE-2023-45734?

CVE-2023-45734 is a medium-severity vulnerability in Openatom Openharmony, classified under Out-of-bounds Write. CVSS score: 4.2/10. Published 2024-02-02.

How severe is CVE-2023-45734?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Buffer overflow in Openatom Openharmony

CVE-2023-45734

in OpenHarmony v3.2.4 and prior versions allow an adjacent attacker arbitrary code execution through out-of-bounds write.

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.

EPSS exploit prediction

EPSS: 0.003 (19.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Openatom Openharmony
Openharmony — versions v3.2.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

gitee.com/openharmony/security/blob/master/zh/security-disclosure/2024/2024-02… (Third Party Advisory)

Frequently asked questions

What is CVE-2023-45734?: CVE-2023-45734 is a medium-severity vulnerability in Openatom Openharmony, classified under Out-of-bounds Write. CVSS score: 4.2/10. Published 2024-02-02.
How severe is CVE-2023-45734?: Medium severity. CVSS v3 base score is 4.2 out of 10.