CVE-2021-22378Network attack vector

Service interruption via concurrent database operations

Published Jun 22, 2021 · Updated Aug 3, 2024

Race condition in the database of Huawei eCNS280_TD V100R005C00 and V100R005C10 allows remote authenticated users to interrupt service. A timing window permits a second thread to operate the database while another database operation is still in progress, leaving shared state improperly synchronized. Access to the affected network and low privileges are required; successful exploitation makes the device behave abnormally, with no reported data disclosure or modification.

CVSS severity6.5
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

Race condition in the database of Huawei eCNS280_TD V100R005C00 and V100R005C10 allows remote authenticated users to interrupt service. A timing window permits a second thread to operate the database while another database operation is still in progress, leaving shared state improperly synchronized. Access to the affected network and low privileges are required; successful exploitation makes the device behave abnormally, with no reported data disclosure or modification.

The record

CVE
CVE-2021-22378
Published
Jun 22, 2021
Updated
Aug 3, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
eCNS280_TD
Classifications
CWE-362, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 22, 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=V100R005C00
  2. Affected versionversion=V100R005C10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Huawei Technologies Co., Ltd. · eCNS280_TDversion=V100R005C00; version=V100R005C10

Published CVSS scores

6.5HuaweiCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.3NIST NVDCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:N/A:P
6.0HuaweiCVSS:3.0/AV:N/AC:L/PR:L/UI:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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