CVE-2026-34854

Kernel memory disclosure and service interruption via use-after-free

Published Apr 13, 2026 · Updated Apr 13, 2026

Kernel use-after-free in affected Huawei EMUI and HarmonyOS versions allows local users to disclose memory and interrupt system service. Huawei has not published the affected object, code path, or operation that accesses memory after it is freed in the kernel module. Exploitation requires local high-privilege access, high-complexity conditions, and no user interaction; affected releases are EMUI 14.0.0, 14.2.0, and 15.0.0 and HarmonyOS 4.0.0, 4.2.0, 4.3.0, 4.3.1, 5.1.0, and 6.0.0.

CVSS severity5.7
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

Kernel use-after-free in affected Huawei EMUI and HarmonyOS versions allows local users to disclose memory and interrupt system service. Huawei has not published the affected object, code path, or operation that accesses memory after it is freed in the kernel module. Exploitation requires local high-privilege access, high-complexity conditions, and no user interaction; affected releases are EMUI 14.0.0, 14.2.0, and 15.0.0 and HarmonyOS 4.0.0, 4.2.0, 4.3.0, 4.3.1, 5.1.0, and 6.0.0.

The record

CVE
CVE-2026-34854
Published
Apr 13, 2026
Updated
Apr 13, 2026
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-416
Attack vector
local
Privileges
admin

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=4.0.0
  2. Affected versionversion=4.2.0
  3. Affected versionversion=4.3.0
  4. Affected versionversion=4.3.1
  5. Affected versionversion=5.1.0
  6. Affected versionversion=6.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

MindSpore · HarmonyOSversion=4.0.0; version=4.2.0; version=4.3.0; version=4.3.1; version=5.1.0; version=6.0.0
MindSpore · EMUIversion=14.0.0; version=14.2.0; version=15.0.0

Published CVSS scores

7.1NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
5.7Huawei TechnologiesCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/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-416Use After Free

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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