What is CVE-2025-0303?

CVE-2025-0303 is a high-severity vulnerability in Openharmony, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-02-07.

How severe is CVE-2025-0303?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Openharmony

CVE-2025-0303

in OpenHarmony v4.1.2 and prior versions allow a local attacker cause the common permission is upgraded to root and sensitive information leak through buffer overflow.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (22.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

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/2025/2025-02…

Frequently asked questions

What is CVE-2025-0303?: CVE-2025-0303 is a high-severity vulnerability in Openharmony, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-02-07.
How severe is CVE-2025-0303?: High severity. CVSS v3 base score is 8.8 out of 10.