CVE-2021-22392Network attack vector

Verification bypass via incorrect buffer-size calculation

Published Aug 2, 2021 · Updated Aug 3, 2024

Incorrect buffer-size calculation in MindSpore EMUI 9.1.0 through 11.0.0 allows remote attackers to bypass verification via network input. Public records do not identify the component or operation that calculates the buffer; Huawei reports only improper verification and redirection to abnormal addresses. Network reachability without authentication is sufficient, and the bounded reported consequence is an integrity-impacting verification bypass rather than disclosure or service interruption.

CVSS severity7.5
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect buffer-size calculation in MindSpore EMUI 9.1.0 through 11.0.0 allows remote attackers to bypass verification via network input. Public records do not identify the component or operation that calculates the buffer; Huawei reports only improper verification and redirection to abnormal addresses. Network reachability without authentication is sufficient, and the bounded reported consequence is an integrity-impacting verification bypass rather than disclosure or service interruption.

The record

CVE
CVE-2021-22392
Published
Aug 2, 2021
Updated
Aug 3, 2024
Vendor
MindSpore
Product
EMUI
Classifications
CWE-131
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 2, 2021CVE 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=10.0.0
  2. Affected versionversion=10.1.0
  3. Affected versionversion=10.1.1
  4. Affected versionversion=11.0.0
  5. Affected versionversion=9.1.0
  6. Affected versionversion=9.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · EMUIversion=10.0.0; version=10.1.0; version=10.1.1; version=11.0.0; version=9.1.0; version=9.1.1

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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-131Incorrect Calculation of Buffer Size

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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