CVE-2026-28543

Device availability loss via diagnostics race

Published Mar 5, 2026 · Updated Mar 5, 2026

Race condition in Huawei HarmonyOS 5.1.0 and 6.0.0 allows local users with high privileges to interrupt device availability. Huawei has not disclosed the shared resource, synchronization failure, or lower-level code locus beyond the maintenance and diagnostics module. Exploitation requires local high-privilege access and no user interaction; the public record does not distinguish a crash, hang, or service interruption.

CVSS severity4.4
Medium
EPSS probability0.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Huawei HarmonyOS 5.1.0 and 6.0.0 allows local users with high privileges to interrupt device availability. Huawei has not disclosed the shared resource, synchronization failure, or lower-level code locus beyond the maintenance and diagnostics module. Exploitation requires local high-privilege access and no user interaction; the public record does not distinguish a crash, hang, or service interruption.

The record

CVE
CVE-2026-28543
Published
Mar 5, 2026
Updated
Mar 5, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-362
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2026Record 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
  2. Affected versionversion=6.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

MindSpore · HarmonyOSversion=5.1.0; version=6.0.0

Published CVSS scores

4.4Huawei TechnologiesCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
4.7NIST NVDCVSS:3.1/AV:L/AC:H/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.

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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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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