CVE-2021-22339Network attack vector

Service disruption via insufficient parameter validation

Published May 20, 2021 · Updated Aug 3, 2024

Denial of service in Huawei ManageOne affected 6.5.x and 8.0.x builds allows attackers to interrupt services via crafted parameters. Huawei identifies insufficient verification of a request parameter as the faulty operation, but does not publish a specific component or parameter name. Attackers must reach the ManageOne network interface; successful exploitation causes some services to become abnormal, with no stated confidentiality or integrity impact.

CVSS severity4.7
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Huawei ManageOne affected 6.5.x and 8.0.x builds allows attackers to interrupt services via crafted parameters. Huawei identifies insufficient verification of a request parameter as the faulty operation, but does not publish a specific component or parameter name. Attackers must reach the ManageOne network interface; successful exploitation causes some services to become abnormal, with no stated confidentiality or integrity impact.

The record

CVE
CVE-2021-22339
Published
May 20, 2021
Updated
Aug 3, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
ManageOne
Classifications
Unavailable
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. May 20, 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=6.5.0,6.5.0.SPC100.B210,6.5.0.SPC100.B220,6.5.1.1.B010,6.5.1.1.B020,6.5.1.1.B030,6.5.1.1.B040,6.5.1.SPC100.B050,6.5.1.SPC101.B010,6.5.1.SPC101.B040,6.5.1.SPC200,6.5.1.SPC200.B010,6.5.1.SPC200.B030,6.5.1.SPC200.B040,6.5.1.SPC200.B050,6.5.1.SPC200.B060,6.5.1.SPC200.B070,6.5.1RC1.B060,6.5.1RC1.B070,6.5.1RC1.B080,6.5.1RC2.B010,6.5.1RC2.B020,6.5.1RC2.B030,6.5.1RC2.B040,6.5.1RC2.B050,6.5.1RC2.B060,6.5.1RC2.B070,6.5.1RC2.B080,6.5.1RC2.B090,6.5.RC2.B050,8.0.0,8.0.0-LCND81,8.0.0.SPC100,8.0.1,8.0.RC2,8.0.RC3,8.0.RC3.B041,8.0.RC3.SPC100

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Huawei Technologies Co., Ltd. · ManageOneversion=6.5.0,6.5.0.SPC100.B210,6.5.0.SPC100.B220,6.5.1.1.B010,6.5.1.1.B020,6.5.1.1.B030,6.5.1.1.B040,6.5.1.SPC100.B050,6.5.1.SPC101.B010,6.5.1.SPC101.B040,6.5.1.SPC200,6.5.1.SPC200.B010,6.5.1.SPC200.B030,6.5.1.SPC200.B040,6.5.1.SPC200.B050,6.5.1.SPC200.B060,6.5.1.SPC200.B070,6.5.1RC1.B060,6.5.1RC1.B070,6.5.1RC1.B080,6.5.1RC2.B010,6.5.1RC2.B020,6.5.1RC2.B030,6.5.1RC2.B040,6.5.1RC2.B050,6.5.1RC2.B060,6.5.1RC2.B070,6.5.1RC2.B080,6.5.1RC2.B090,6.5.RC2.B050,8.0.0,8.0.0-LCND81,8.0.0.SPC100,8.0.1,8.0.RC2,8.0.RC3,8.0.RC3.B041,8.0.RC3.SPC100

Published CVSS scores

4.4Huawei PSIRTCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C
4.7Huawei PSIRTCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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