Security readout for executives and security teams
Plain-English summary
CVE-2021-22371 is a Huawei smartphone permission-management flaw. Huawei states successful exploitation may affect service confidentiality. The public record identifies affected EMUI and Magic UI versions, but does not provide severity scoring, exploit details, or a confirmed exploitation report.
Executive priority
Prioritize this as a mobile-fleet hygiene issue unless affected Huawei devices access sensitive business services. The missing severity and exploit evidence reduce certainty, but the stated confidentiality impact justifies inventory and update verification.
Technical view
The vulnerability is described as improper permission management in Huawei smartphones running EMUI 11.0.1, 11.0.0, 10.1.1 and Magic UI 4.0.0, 3.1.1. The only stated impact is potential service confidentiality loss. No CWE, CVSS vector, attack prerequisites, or affected device models are provided in the source bundle.
Likely exposure
Exposure is likely limited to Huawei smartphones using the listed EMUI or Magic UI versions. Organizations with managed mobile fleets, bring-your-own-device access, or Huawei devices handling sensitive services should verify versions and support status.
Exploitation context
The source bundle does not cite active exploitation, public exploit availability, or CISA KEV inclusion. Treat exploitation status as unconfirmed. Public evidence only supports a confidentiality-impacting permission-management issue disclosed in Huawei’s May 2021 bulletin context.
Researcher notes
Public detail is sparse. The record lacks CVSS, CWE, model-level scope, attack vector, privileges required, and remediation specifics. Analysis should avoid assuming exploitability beyond the stated improper permission management and confidentiality impact.
Mitigation direction
- Identify Huawei devices running the listed EMUI or Magic UI versions.
- Check Huawei’s May 2021 bulletin and device support pages for official guidance.
- Apply Huawei-provided security updates when available for affected models.
- Restrict sensitive access from affected or unsupported devices until remediated.
- Use MDM policy to enforce minimum OS and patch-level requirements.
Validation and detection
- Inventory Huawei device OS versions through MDM or endpoint records.
- Compare device builds against Huawei’s official bulletin and support guidance.
- Confirm affected EMUI and Magic UI versions are updated or removed from access paths.
- Review mobile access policies for unmanaged Huawei devices.
- Document residual exposure where vendor guidance is unavailable or devices are unsupported.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-22371 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://consumer.huawei.com/en/support/bulletin/2021/5/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.