CVE-2021-22365

Service interruption via malformed internal message

Published Jun 22, 2021 · Updated Aug 3, 2024

Out-of-bounds read in Huawei eSE620X vESS affected builds allows local users to interrupt service via a crafted internal message. The receiving process insufficiently validates the internal message before reading beyond its intended buffer boundary. Exploitation requires access to the affected device; Huawei reports abnormal process and service operation without confidentiality or integrity impact.

CVSS severity4.0
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Huawei eSE620X vESS affected builds allows local users to interrupt service via a crafted internal message. The receiving process insufficiently validates the internal message before reading beyond its intended buffer boundary. Exploitation requires access to the affected device; Huawei reports abnormal process and service operation without confidentiality or integrity impact.

The record

CVE
CVE-2021-22365
Published
Jun 22, 2021
Updated
Aug 3, 2024
Vendor
Huawei
Product
eSE620X vESS
Classifications
CWE-125, T1499.004
Attack vector
local
Privileges
unauthenticated

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=V100R001C10SPC200,V100R001C20SPC200,V200R001C00SPC300

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Huawei · eSE620X vESSversion=V100R001C10SPC200,V100R001C20SPC200,V200R001C00SPC300

Published CVSS scores

4.0HuaweiCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.7HuaweiCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

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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