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CVE Record

CVE-2021-22382: Huawei LTE USB Dongle products have an improper permission assignment vulnerability.

Huawei LTE USB Dongle products have an improper permission assignment vulnerability. An attacker can locally access and log in to a PC to induce a user to install a specially crafted application. After successfully exploiting this vulnerability, the attacker can perform unauthenticated operations. Affected product versions include:E3372 E3372h-153TCPU-V200R002B333D01SP00C00.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This issue affects a specific Huawei E3372 LTE USB dongle firmware. A local attacker who can log in to a PC may persuade a user to install a crafted application, then perform unspecified unauthenticated operations. The public bundle does not provide CVSS, detailed impact, or confirmed fix information.

Executive priority

Prioritize as a targeted endpoint and remote-access hardware risk, not an internet-wide emergency. The main business action is asset discovery: determine whether the exact Huawei dongle firmware is deployed, then follow vendor guidance and harden local software installation controls.

Technical view

CVE-2021-22382 is described as an improper permission assignment vulnerability in Huawei LTE USB Dongle products, affecting E3372 E3372h-153TCPU-V200R002B333D01SP00C00. Exploitation requires local PC access and user installation of a crafted application. Post-exploitation behavior is only described as unauthenticated operations, without technical detail.

Likely exposure

Exposure appears limited to endpoints using the listed Huawei E3372 dongle firmware. Risk is highest where users can install untrusted local applications or where shared PCs use these dongles. The source bundle does not identify other affected models, operating systems, or network-exposed attack paths.

Exploitation context

The bundle does not report active exploitation, and KEV status is false. The described path is local and social-engineering dependent: the attacker must access and log in to a PC, then induce installation of a specially crafted application.

Researcher notes

Public evidence is sparse. The source bundle gives affected firmware and attack prerequisites but no CVSS vector, CWE, patch details, proof of concept, or operation description. Avoid broad product assumptions beyond the named E3372 firmware version.

Mitigation direction

  • Inventory Huawei E3372 LTE USB dongles and record firmware versions.
  • Check Huawei PSIRT guidance for affected firmware remediation or replacement options.
  • Restrict installation of untrusted applications on PCs using these dongles.
  • Remove or isolate affected dongles until vendor guidance is confirmed.
  • Apply endpoint application control where local user installation is allowed.

Validation and detection

  • Confirm whether E3372h-153TCPU-V200R002B333D01SP00C00 exists in the environment.
  • Review endpoint software installation logs for untrusted applications on affected PCs.
  • Verify users cannot install unapproved applications on systems using these dongles.
  • Check Huawei advisory status before declaring remediation complete.
  • Document any compensating controls for remaining affected devices.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2021-22382 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aE3372E3372h-153TCPU-V200R002B333D01SP00C00Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.