CVE-2021-37111Network attack vector

Unauthenticated memory exhaustion via undisclosed leak

Published Jan 3, 2022 · Updated Aug 4, 2024

Memory leakage in Huawei EMUI, Magic UI, and HarmonyOS allows remote attackers to exhaust device memory through network access. The public Huawei and NVD records do not identify the leaking component, allocation path, or untrusted input that leaves memory unreleased. No authentication or user interaction is required, and the documented consequence is availability loss from memory exhaustion rather than data access or modification.

CVSS severity7.5
High
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leakage in Huawei EMUI, Magic UI, and HarmonyOS allows remote attackers to exhaust device memory through network access. The public Huawei and NVD records do not identify the leaking component, allocation path, or untrusted input that leaves memory unreleased. No authentication or user interaction is required, and the documented consequence is availability loss from memory exhaustion rather than data access or modification.

The record

CVE
CVE-2021-37111
Published
Jan 3, 2022
Updated
Aug 4, 2024
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-770, T1499
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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · HarmonyOSversion=2.0
MindSpore · EMUIversion=10.1.0; version=10.1.1; version=11.0.1
MindSpore · Magic UIversion=3.1.0; version=3.1.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

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-770Allocation of Resources Without Limits or Throttling
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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