CVE-2021-22382

Unauthenticated operations after malicious application installation

Published Jun 22, 2021 · Updated Aug 3, 2024

Improper permission assignment in Huawei E3372 firmware before 22.333.03.00.00 allows local users to perform unauthenticated operations. Huawei has not disclosed the affected permission locus or the operation that incorrectly preserves or assigns access rights to untrusted code. Exploitation requires local access to a logged-in macOS system, high privileges, and user installation of a specially crafted application; the published impact is limited to unspecified unauthenticated operations.

CVSS severity3.8
Low
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permission assignment in Huawei E3372 firmware before 22.333.03.00.00 allows local users to perform unauthenticated operations. Huawei has not disclosed the affected permission locus or the operation that incorrectly preserves or assigns access rights to untrusted code. Exploitation requires local access to a logged-in macOS system, high privileges, and user installation of a specially crafted application; the published impact is limited to unspecified unauthenticated operations.

The record

CVE
CVE-2021-22382
Published
Jun 22, 2021
Updated
Aug 3, 2024
Vendor
Huawei
Product
E3372
Classifications
CWE-281, T1204.002
Attack vector
local
Privileges
admin

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=E3372h-153TCPU-V200R002B333D01SP00C00

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Huawei · E3372version=E3372h-153TCPU-V200R002B333D01SP00C00

Published CVSS scores

3.6HuaweiCVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L/E:F/RL:O/RC:C
4.4NVDAV:L/AC:M/Au:N/C:P/I:P/A:P
6.5NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
3.8HuaweiCVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-281Improper Preservation of Permissions
T1204.002Malicious File

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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