CVE-2022-31758

Local data disclosure via kernel race

Published Jun 13, 2022 · Updated Aug 3, 2024

A kernel race in HarmonyOS 2.0 and affected EMUI releases allows local users to disclose data through an unspecified kernel module. Huawei identifies neither the module nor the shared resource or unsynchronized operation that exposes data during the race. Exploitation requires low local privileges and winning a high-complexity timing race; published evidence limits the consequence to confidentiality.

CVSS severity4.7
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A kernel race in HarmonyOS 2.0 and affected EMUI releases allows local users to disclose data through an unspecified kernel module. Huawei identifies neither the module nor the shared resource or unsynchronized operation that exposes data during the race. Exploitation requires low local privileges and winning a high-complexity timing race; published evidence limits the consequence to confidentiality.

The record

CVE
CVE-2022-31758
Published
Jun 13, 2022
Updated
Aug 3, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
HarmonyOS
Classifications
CWE-362
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Huawei Technologies Co., Ltd. · HarmonyOSversion=2.0
MindSpore · EMUIversion=10.1.0; version=10.1.1; version=11.0.0; version=12.0.0

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
1.9NIST NVDAV:L/AC:M/Au:N/C:P/I:N/A:N

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
Privilegesauthenticated
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.

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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