CVE-2024-21863

Local denial of service via improper input

Published Feb 2, 2024 · Updated Aug 1, 2024

Improper input validation in OpenHarmony DSoftBus 3.2.0 through 3.2.4 and 4.0.0 allows local users to cause a denial of service. OpenHarmony identifies DSoftBus as the affected component but has not published the input field, parsing path, or rejected validation operation. Local access is required, and the public record does not distinguish whether the resulting interruption is a crash, hang, or reboot.

CVSS severity4.7
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in OpenHarmony DSoftBus 3.2.0 through 3.2.4 and 4.0.0 allows local users to cause a denial of service. OpenHarmony identifies DSoftBus as the affected component but has not published the input field, parsing path, or rejected validation operation. Local access is required, and the public record does not distinguish whether the resulting interruption is a crash, hang, or reboot.

The record

CVE
CVE-2024-21863
Published
Feb 2, 2024
Updated
Aug 1, 2024
Vendor
OpenHarmony
Product
OpenHarmony
Classifications
CWE-20, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=v3.2.0 <=v3.2.4
  2. Affected versionversion=v4.0.0 <v4.0.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

OpenHarmony · OpenHarmonyversion=v3.2.0 <=v3.2.4; version=v4.0.0 <v4.0.1

Published CVSS scores

6.2NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.7OpenHarmonyCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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