CVE-2026-34849

Service interruption via screen-management use-after-free

Published Apr 13, 2026 · Updated Apr 13, 2026

Use-after-free in Huawei HarmonyOS 5.1.0 and 6.0.0 screen management allows local users to interrupt service through local interaction. Huawei has not disclosed the affected function or the lifetime-management operation that leaves a screen-management object accessible after it is freed. Exploitation requires local access, high-complexity timing, and user interaction; reported impact is limited to availability.

CVSS severity2.5
Low
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

Use-after-free in Huawei HarmonyOS 5.1.0 and 6.0.0 screen management allows local users to interrupt service through local interaction. Huawei has not disclosed the affected function or the lifetime-management operation that leaves a screen-management object accessible after it is freed. Exploitation requires local access, high-complexity timing, and user interaction; reported impact is limited to availability.

The record

CVE
CVE-2026-34849
Published
Apr 13, 2026
Updated
Apr 13, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-362, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 13, 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 privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=5.1.0; version=6.0.0

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
2.5Huawei TechnologiesCVSS:3.1/AV:L/AC:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499.004Application or System Exploitation

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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