CVE-2021-22400

System crash via unchecked parameter modification

Published Aug 3, 2021 · Updated Aug 3, 2024

Improper input validation in Huawei Honor V30 firmware allows local attackers to crash the system through a malicious app. Huawei identifies missing validation of specific parameters but does not disclose the affected component or parameter-processing operation. Exploitation requires a user to install the malicious app; the documented consequence is a system crash, with no confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Huawei Honor V30 firmware allows local attackers to crash the system through a malicious app. Huawei identifies missing validation of specific parameters but does not disclose the affected component or parameter-processing operation. Exploitation requires a user to install the malicious app; the documented consequence is a system crash, with no confidentiality or integrity impact.

The record

CVE
CVE-2021-22400
Published
Aug 3, 2021
Updated
Aug 3, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
Honor V30
Classifications
CWE-20
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=10.0.1.10(C00E10R1P1),10.0.1.105(C00E103R3P3),10.0.1.115(C00E110R3P3),10.0.1.123(C00E121R3P3),10.0.1.135(C00E130R3P3),10.0.1.135(C00E130R4P1),10.0.1.152(C00E140R4P1),10.0.1.160(C00E160R4P1),10.0.1.167(C00E166R4P1),10.0.1.173(C00E172R5P1),10.0.1.178(C00E175R5P1),10.1.0.202(C00E79R5P1)

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Huawei Technologies Co., Ltd. · Honor V30version=10.0.1.10(C00E10R1P1),10.0.1.105(C00E103R3P3),10.0.1.115(C00E110R3P3),10.0.1.123(C00E121R3P3),10.0.1.135(C00E130R3P3),10.0.1.135(C00E130R4P1),10.0.1.152(C00E140R4P1),10.0.1.160(C00E160R4P1),10.0.1.167(C00E166R4P1),10.0.1.173(C00E172R5P1),10.0.1.178(C00E175R5P1),10.1.0.202(C00E79R5P1)

Published CVSS scores

5.5HuaweiCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.1HuaweiCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation

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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