Security readout for executives and security teams
Plain-English summary
CVE-2021-22419 is a HarmonyOS 2.0 issue where a local attacker may cause persistent denial of service. Public details are limited, with no CVSS score, named component, or confirmed exploitation evidence in the provided sources.
Executive priority
Prioritize if HarmonyOS 2.0 devices are business-critical or accessible to untrusted local users. Otherwise, track through normal mobile-device patch management until vendor details clarify exposure.
Technical view
The CVE describes insufficient verification of data authenticity in an unspecified HarmonyOS component. The stated impact is persistent DoS by local attackers. The sources identify Huawei HarmonyOS 2.0 as affected but do not provide CWE, CVSS, exploit details, or exact fixed builds.
Likely exposure
Exposure appears limited to Huawei HarmonyOS 2.0 environments where an attacker can obtain local access. The sources do not identify specific device models or subcomponents.
Exploitation context
The provided record does not show CISA KEV listing or other evidence of active exploitation. Attack preconditions beyond local attacker access are not documented.
Researcher notes
Do not infer affected models or exploitability beyond the CVE text. The public record is sparse: unspecified component, unknown CVSS, no CWE, and no provided fixed-build detail.
Mitigation direction
- Check Huawei/HarmonyOS security update guidance for CVE-2021-22419 and affected build details.
- Apply vendor-provided HarmonyOS updates for affected 2.0 devices where available.
- Restrict local access to managed HarmonyOS devices, especially shared or kiosk-style devices.
- Monitor vendor advisories for fixed-version or device-model clarification.
Validation and detection
- Inventory HarmonyOS 2.0 devices in managed environments.
- Compare device build and security patch levels against Huawei advisory guidance.
- Confirm whether affected devices are shared, physically accessible, or locally administered by untrusted users.
- Review availability incidents on HarmonyOS devices for unexplained persistent DoS symptoms.
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-2021-22419 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.