CVE-2021-37114Network attack vector

Unauthenticated information disclosure via out-of-bounds read

Published Jan 3, 2022 · Updated Aug 4, 2024

Out-of-bounds reads in Huawei HarmonyOS, EMUI, and Magic UI allow remote attackers to disclose service data via network requests. Huawei has not disclosed the affected component, malformed input, or operation that reads beyond its allocated boundary. The issue is remotely reachable without authentication in HarmonyOS 2.0, EMUI 10.1.1 and 11.0.1, and Magic UI 3.1.1; only confidentiality is affected.

CVSS severity5.3
Medium
EPSS probability0.55%
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 reads in Huawei HarmonyOS, EMUI, and Magic UI allow remote attackers to disclose service data via network requests. Huawei has not disclosed the affected component, malformed input, or operation that reads beyond its allocated boundary. The issue is remotely reachable without authentication in HarmonyOS 2.0, EMUI 10.1.1 and 11.0.1, and Magic UI 3.1.1; only confidentiality is affected.

The record

CVE
CVE-2021-37114
Published
Jan 3, 2022
Updated
Aug 4, 2024
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

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  1. Affected versionversion=2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=2.0
MindSpore · EMUIversion=10.1.1; version=11.0.1
MindSpore · Magic UIversion=3.1.1

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST NVDAV:N/AC:L/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

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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