Security readout for executives and security teams
Plain-English summary
This CVE describes an integer overflow in Huawei smartphones running EMUI 11.0.0 or Magic UI 4.0.0. Huawei says successful exploitation may cause random kernel address access. Public details are sparse, so urgency depends on whether affected Huawei devices remain in business use.
Executive priority
Prioritize verification if Huawei smartphones are used for business access. The potential kernel-level impact is concerning, but missing severity and exploitation details prevent a stronger urgency call from the provided evidence.
Technical view
The provided record identifies an integer overflow vulnerability affecting Huawei EMUI 11.0.0 and Magic UI 4.0.0. The stated impact is random kernel address access. The sources do not provide CVSS, CWE, attack vector, privileges required, user interaction, or component-level detail.
Likely exposure
Exposure is limited, based on the source bundle, to Huawei smartphones running EMUI 11.0.0 or Magic UI 4.0.0. Business relevance is highest for managed fleets, field devices, or BYOD programs that still allow those versions.
Exploitation context
The CVE is not listed as KEV in the provided bundle. No cited source states active exploitation, public exploit availability, or reliable attack preconditions. Treat exploitability as unconfirmed from these sources.
Researcher notes
The public record is thin: no CVSS, CWE, affected component, attack vector, or remediation specifics are included in the bundle. The key validated facts are affected Huawei mobile OS versions and the possible random kernel address access impact.
Mitigation direction
- Check Huawei's June 2021 security bulletin for the applicable vendor guidance.
- Update affected Huawei devices to a vendor-supported patched build where available.
- Remove unsupported affected devices from managed or sensitive business access.
- Use MDM controls to block noncompliant EMUI and Magic UI versions.
Validation and detection
- Inventory Huawei devices and record EMUI or Magic UI version numbers.
- Compare device firmware and patch levels against Huawei's June 2021 bulletin.
- Confirm MDM compliance policies flag EMUI 11.0.0 and Magic UI 4.0.0.
- Review whether BYOD access includes affected Huawei smartphones.
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-2021-22412 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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/2021/6/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.