CVE-2026-81644Network attack vector

Service interruption through undisclosed preview service flaw

Published Sep 9, 2026 · Updated Sep 9, 2026

Denial of service in Huawei HarmonyOS 6.1.0 allows remote attackers to interrupt the preview service through network input. Huawei has not published the preview service entry point, the input it mishandles, or the failing operation. Exploitation requires user interaction and affects availability without any reported ability to disclose or modify data.

CVSS severity4.3
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Huawei HarmonyOS 6.1.0 allows remote attackers to interrupt the preview service through network input. Huawei has not published the preview service entry point, the input it mishandles, or the failing operation. Exploitation requires user interaction and affects availability without any reported ability to disclose or modify data.

The record

CVE
CVE-2026-81644
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-264, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 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=6.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=6.1.0

Published CVSS scores

4.3HuaweiCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-264Permissions, Privileges, and Access Controls
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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