Security readout for executives and security teams
Plain-English summary
CVE-2021-22388 is an integer overflow issue affecting Huawei smartphones running EMUI 11.0.0 or Magic UI 4.0.0. Huawei’s public description says successful exploitation may cause code execution. The available source bundle does not provide CVSS, attack vector, prerequisites, or confirmed exploitation.
Executive priority
Handle as a targeted mobile exposure review, not a confirmed emergency. Prioritize if Huawei smartphones are used for privileged access, executive communications, VPN, email, or sensitive applications.
Technical view
The CVE describes an integer overflow vulnerability in Huawei smartphone software, specifically EMUI 11.0.0 and Magic UI 4.0.0. The stated impact is possible execution of certain code. No CWE, CVSS metrics, exploitability details, vulnerable component, or fixed version is included in the provided sources.
Likely exposure
Exposure is likely limited to Huawei smartphones running EMUI 11.0.0 or Magic UI 4.0.0. Organizations with managed mobile fleets, contractor devices, or BYOD access should check whether these Huawei software versions are present.
Exploitation context
The source bundle does not indicate CISA KEV inclusion, active exploitation, public exploit availability, or exploitation in the wild. The business risk depends on device presence, update status, and whether affected phones can access sensitive systems.
Researcher notes
Public evidence is sparse. The bundle identifies affected products and possible code execution impact, but omits component, attack surface, CVSS, CWE, prerequisites, and fixed build details. Avoid assuming remote exploitation or universal Huawei device impact without vendor confirmation.
Mitigation direction
- Check Huawei’s June 2021 security bulletin for vendor guidance.
- Inventory Huawei devices for EMUI 11.0.0 and Magic UI 4.0.0.
- Prioritize updates through approved Huawei or carrier update channels.
- Restrict sensitive access from affected devices until update status is confirmed.
Validation and detection
- Query mobile device management records for Huawei device software versions.
- Confirm whether affected devices received relevant Huawei security updates.
- Review BYOD attestations for unmanaged Huawei smartphones.
- Document any devices still running EMUI 11.0.0 or Magic UI 4.0.0.
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-2021-22388 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.