Security readout for executives and security teams
Plain-English summary
CVE-2021-22295 is a local permission bypass issue in Huawei HarmonyOS 2.0. The public record says a local attacker could trigger a device hang through a page fault handler error. The known business impact is availability disruption on affected HarmonyOS devices, not confirmed data theft or remote compromise.
Executive priority
Treat as a targeted availability risk for HarmonyOS 2.0 fleets. Urgency is higher where devices are shared, field-deployed, or safety-sensitive. Evidence is insufficient to justify emergency response for non-HarmonyOS assets.
Technical view
The vulnerability affects a HarmonyOS component in version 2.0. The CVE describes permission bypass leading to a hang caused by an OsVmPageFaultHandler page error. No CVSS vector, CWE, vulnerable component name, patch identifier, or detailed vendor remediation is present in the supplied sources.
Likely exposure
Exposure appears limited to environments using Huawei HarmonyOS 2.0 devices. The source bundle does not identify specific device models, builds, configurations, or whether later HarmonyOS versions are affected.
Exploitation context
The CVE describes local attackers only. There is no KEV listing and no supplied source confirming active exploitation, public exploit availability, or remote attack paths.
Researcher notes
Public detail is sparse. The record names a permission bypass and OsVmPageFaultHandler-related hang, but not the component, preconditions beyond local access, attack complexity, or fixed builds. Avoid assuming broader impact without vendor confirmation.
Mitigation direction
- Inventory Huawei HarmonyOS devices and identify any running version 2.0.
- Check Huawei HarmonyOS security guidance for the referenced advisory and applicable updates.
- Prioritize updates for shared, kiosk, or physically accessible devices.
- Restrict local access to affected devices until vendor remediation is confirmed.
Validation and detection
- Confirm HarmonyOS version on managed Huawei devices.
- Map affected devices to business owners and physical access conditions.
- Review Huawei advisory details for fixed versions or model-specific guidance.
- Monitor device stability reports for unexplained hangs on HarmonyOS 2.0.
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-2021-22295 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/console/safetyDetail?id=9145efa5d9064d94a7fc3968b6054d83&pageSize=10&pageIndex=1CVE 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.