CVE-2025-54643

Local information disclosure via unchecked ambient-light array access

Published Aug 6, 2025 · Updated Aug 6, 2025

Out-of-bounds read in Huawei HarmonyOS 3.1.0 and 4.0.0 and EMUI 13.0.0 and 14.0.0 allows local users to disclose data. The kernel ambient-light module insufficiently validates data before using it for an array access, causing the read to cross array bounds. Exploitation requires local low-privilege access and no user interaction; Huawei identifies confidentiality as the principal impact but does not specify the exposed data.

CVSS severity6.6
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Huawei HarmonyOS 3.1.0 and 4.0.0 and EMUI 13.0.0 and 14.0.0 allows local users to disclose data. The kernel ambient-light module insufficiently validates data before using it for an array access, causing the read to cross array bounds. Exploitation requires local low-privilege access and no user interaction; Huawei identifies confidentiality as the principal impact but does not specify the exposed data.

The record

CVE
CVE-2025-54643
Published
Aug 6, 2025
Updated
Aug 6, 2025
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-129, CWE-125
Attack vector
local
Privileges
authenticated

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=3.1.0
  2. Affected versionversion=4.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

MindSpore · HarmonyOSversion=3.1.0; version=4.0.0
MindSpore · EMUIversion=13.0.0; version=14.0.0

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.6Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index
CWE-125Out-of-bounds Read

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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