Buffer overflow in Openatom Openharmony
CVE-2025-23420
in OpenHarmony v5.0.2 and prior versions allow a local attacker arbitrary code execution in pre-installed apps through out-of-bounds write. This vulnerability can be exploited only in restricted scenarios.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (6.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.
Affected products
- Openatom Openharmony
- Openharmony — versions v4.1.0
Weakness classification (CWE)
References
- scy@openharmony.io (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-23420?
- CVE-2025-23420 is a low-severity vulnerability in Openatom Openharmony, classified under Out-of-bounds Write. CVSS score: 3.8/10. Published 2025-03-04.
- How severe is CVE-2025-23420?
- Low severity. CVSS v3 base score is 3.8 out of 10.