How severe is CVE-2025-0303?

CVE-2025-0303 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-0303 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-0303?

CVE-2025-0303 affects Openatom Openharmony. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-0303?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-0303 have an EU (EUVD) identifier?

Yes. CVE-2025-0303 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-1593.

When was CVE-2025-0303 published?

CVE-2025-0303 was published on 2025-02-07 and last updated on 2026-06-17.

CVE-2025-0303

CVE-2025-0303 is a high-severity vulnerability in Openatom Openharmony with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-1593
Weakness: CWE-120
Affected product: Openatom Openharmony
Published: 2025-02-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-0303?: CVE-2025-0303 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-0303 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-0303?: CVE-2025-0303 affects Openatom Openharmony. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-0303?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-0303 have an EU (EUVD) identifier?: Yes. CVE-2025-0303 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-1593.
When was CVE-2025-0303 published?: CVE-2025-0303 was published on 2025-02-07 and last updated on 2026-06-17.

References

https://gitee.com/openharmony/security/blob/master/zh/security-disclosure/2025/2025-02.md

Affected products (1)

cpe:2.3:o:openatom:openharmony:*:*:*:*:-:*:*:*

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