CVE-2021-22363Network attack vector

Authenticated service disruption via improper resource management

Published Jun 22, 2021 · Updated Aug 3, 2024

Resource management error in Huawei eCNS280_TD V100R005C10SPC650 allows remote authenticated users to interrupt service. Huawei states that an affected device function manages allocated resources improperly during specific operations, but does not disclose the function or resource. Network access to the device is required; Huawei describes the attacker as authenticated even though its CVSS vector records no privileges required.

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

Resource management error in Huawei eCNS280_TD V100R005C10SPC650 allows remote authenticated users to interrupt service. Huawei states that an affected device function manages allocated resources improperly during specific operations, but does not disclose the function or resource. Network access to the device is required; Huawei describes the attacker as authenticated even though its CVSS vector records no privileges required.

The record

CVE
CVE-2021-22363
Published
Jun 22, 2021
Updated
Aug 3, 2024
Vendor
Huawei Technologies Co., Ltd.
Product
eCNS280_TD
Classifications
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=V100R005C10SPC650

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Huawei Technologies Co., Ltd. · eCNS280_TDversion=V100R005C10SPC650

Published CVSS scores

7.0HuaweiCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C
7.5HuaweiCVSS:3.0/AV:N/AC:L/PR:N/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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