Security readout for executives and security teams
Plain-English summary
CVE-2021-22416 is a HarmonyOS 2.0 vulnerability where flawed data processing in an unspecified component may let a local attacker execute kernel code. That is serious because kernel-level control can undermine device security, but the public record provides limited technical detail.
Executive priority
Treat this as a high-priority mobile/device platform issue where HarmonyOS 2.0 is present. Urgency is driven by kernel execution impact, moderated by local attack requirements and sparse public detail.
Technical view
The CVE record describes a Data Processing Errors vulnerability in a HarmonyOS component affecting version 2.0. The stated impact is local attacker-triggered Kernel Code Execution. No CVSS vector, CWE mapping, component name, or public exploit detail is provided in the supplied sources.
Likely exposure
Exposure appears limited to Huawei HarmonyOS 2.0 devices containing the affected component. The sources do not identify specific models, builds, or deployment contexts, so asset owners should map HarmonyOS versions against Huawei security update guidance.
Exploitation context
The available evidence supports local attack preconditions and possible kernel code execution. CISA KEV status is false in the supplied bundle, and no cited source states active exploitation or public weaponization.
Researcher notes
The record is thin: no CVSS, CWE, named component, root cause detail, or exploit status beyond local kernel code execution. Avoid assuming remote reachability, specific models, or exploit maturity without additional Huawei documentation.
Mitigation direction
- Review Huawei's June 2021 HarmonyOS OEM security update for fixed build guidance.
- Apply vendor-provided HarmonyOS security updates to affected version 2.0 devices.
- Prioritize devices used by privileged users or exposed to untrusted local access.
- Track Huawei advisories for affected component, model, or build clarification.
Validation and detection
- Inventory Huawei devices and identify any running HarmonyOS 2.0.
- Compare device patch levels against Huawei's June 2021 security update guidance.
- Confirm whether affected devices remain in production or sensitive environments.
- Document unresolved model or build uncertainty for risk acceptance decisions.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-22416 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://device.harmonyos.com/cn/docs/security/update/oem_security_update_phone_202106-0000001165452077CVE 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.