How severe is CVE-2024-21863?

CVE-2024-21863 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2024-21863 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21863?

CVE-2024-21863 primarily affects Openatom Openharmony. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21863?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21863 have an EU (EUVD) identifier?

Yes. CVE-2024-21863 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19474.

When was CVE-2024-21863 published?

CVE-2024-21863 was published on 2024-02-02 and last updated on 2026-06-17.

CVE-2024-21863

CVE-2024-21863 is a medium-severity vulnerability in Openatom Openharmony with a CVSS 3.x base score of 4.7. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19474
Weakness: CWE-20
Affected product: Openatom Openharmony
Published: 2024-02-02
Last modified: 2026-06-17

Description

in OpenHarmony v4.0.0 and prior versions allow a local attacker cause DOS through improper input.

Frequently asked questions

What is CVE-2024-21863?: in OpenHarmony v4.0.0 and prior versions allow a local attacker cause DOS through improper input.
How severe is CVE-2024-21863?: CVE-2024-21863 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2024-21863 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21863?: CVE-2024-21863 primarily affects Openatom Openharmony. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21863?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21863 have an EU (EUVD) identifier?: Yes. CVE-2024-21863 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19474.
When was CVE-2024-21863 published?: CVE-2024-21863 was published on 2024-02-02 and last updated on 2026-06-17.

References

https://gitee.com/openharmony/security/blob/master/zh/security-disclosure/2024/2024-02.md

Affected products (2)

cpe:2.3:o:openatom:openharmony:*:*:*:*:-:*:*:*
cpe:2.3:o:openatom:openharmony:4.0:*:*:*:-:*:*:*

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