What is CVE-2025-25052?

CVE-2025-25052 is a low-severity vulnerability in Openatom Openharmony, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 3.3/10. Published 2025-05-06.

How severe is CVE-2025-25052?

Low severity. CVSS v3 base score is 3.3 out of 10.

Buffer overflow in Openatom Openharmony

CVE-2025-25052

in OpenHarmony v5.0.3 and prior versions allow a local attacker cause DOS through buffer overflow.

Vulnerability class: Buffer Overflow

Published 2025-05-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.001 (3.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Openatom Openharmony
Openharmony — versions v4.1.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

gitee.com/openharmony/security/blob/master/zh/security-disclosure/2025/2025-05… (Third Party Advisory)

Frequently asked questions

What is CVE-2025-25052?: CVE-2025-25052 is a low-severity vulnerability in Openatom Openharmony, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 3.3/10. Published 2025-05-06.
How severe is CVE-2025-25052?: Low severity. CVSS v3 base score is 3.3 out of 10.