CVE-2026-49314

Local service interruption via out-of-bounds write

Published Sep 9, 2026 · Updated Sep 9, 2026

Out-of-bounds write in Huawei HarmonyOS 6.1.0 allows local users to interrupt service through the rendering and composition module. Huawei has not disclosed the affected routine, malformed input, or memory-write operation within that module. Local access is required without privileges or user interaction; Huawei does not identify whether the result is a hang, crash, or reboot.

CVSS severity7.3
High
EPSS probability0.08%
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 write in Huawei HarmonyOS 6.1.0 allows local users to interrupt service through the rendering and composition module. Huawei has not disclosed the affected routine, malformed input, or memory-write operation within that module. Local access is required without privileges or user interaction; Huawei does not identify whether the result is a hang, crash, or reboot.

The record

CVE
CVE-2026-49314
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-125, T1499
Attack vector
local
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 vectorlocal
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=6.1.0

Published CVSS scores

7.3Huawei CNACVSS:3.1/AV:L/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
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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