What is the CVSS score of CVE-2025-23420?

CVE-2025-23420 has a CVSS 3.1 base score of 3.8 (Low). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Openharmony are affected by CVE-2025-23420?

CVE-2025-23420 is a low-severity vulnerability in OpenHarmony involving out-of-bounds write (CVSS 3.8).

How to fix or mitigate CVE-2025-23420?

During next maintenance window: Apply vendor patches when convenient. Verify out-of-bounds write controls are in place.

Openharmony CVE-2025-23420

LOW

Out-of-bounds Write (CWE-787)

2025-03-04 scy@openharmony.io

Memory Corruption Buffer Overflow RCE Openharmony

3.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

3.8 LOW

AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:29 vuln.today

CVE Published

Mar 04, 2025 - 04:15 nvd

LOW 3.8

DescriptionCVE.org

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.

AnalysisAI

in OpenHarmony v5.0.2 and prior versions allow a local attacker arbitrary code execution in pre-installed apps through out-of-bounds write. Rated low severity (CVSS 3.8), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. 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. Affected products include: Openatom Openharmony.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).