CVE-2025-54616

Local availability impact via out-of-bounds write

Published Aug 6, 2025 · Updated Aug 6, 2025

Out-of-bounds write in the ArkUI framework in Huawei HarmonyOS 5.1.0 allows local users to cause an unspecified availability impact. Huawei identifies ArkUI and CWE-787 but has not disclosed the affected array, triggering input, or incorrect bounds operation. Exploitation requires local access without privileges or user interaction; the resulting failure mode remains undisclosed.

CVSS severity4.0
Medium
EPSS probability0.10%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in the ArkUI framework in Huawei HarmonyOS 5.1.0 allows local users to cause an unspecified availability impact. Huawei identifies ArkUI and CWE-787 but has not disclosed the affected array, triggering input, or incorrect bounds operation. Exploitation requires local access without privileges or user interaction; the resulting failure mode remains undisclosed.

The record

CVE
CVE-2025-54616
Published
Aug 6, 2025
Updated
Aug 6, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-787
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2025Record 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=5.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=5.1.0

Published CVSS scores

4.0Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

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No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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