Security readout for executives and security teams
Plain-English summary
CVE-2021-22425 is a double-free flaw in a HarmonyOS component affecting Huawei HarmonyOS 2.0. A local attacker could potentially elevate privileges to root. Business urgency depends on whether the organization has HarmonyOS 2.0 devices and whether untrusted users or apps can run locally on them.
Executive priority
Treat this as a targeted device-hardening priority, not a broad network emergency. If HarmonyOS 2.0 devices exist in the business, update guidance should be reviewed promptly because root elevation can turn local access into full device compromise.
Technical view
The public record describes a double-free vulnerability in HarmonyOS 2.0 that may allow local attackers to elevate privileges to root. The source bundle does not identify the specific component, vulnerable code path, CVSS score, exploit prerequisites, patch level, or fixed version.
Likely exposure
Exposure appears limited to Huawei devices running HarmonyOS 2.0. The available sources do not show impact for other Huawei products, later HarmonyOS versions, or non-Huawei platforms.
Exploitation context
No active exploitation is supported by the provided sources, and the CVE is not listed as KEV in the bundle. The described attack is local, so risk is most relevant after device access, malicious app execution, or another foothold.
Researcher notes
Public detail is sparse. The record names double free and local root privilege escalation but omits component identity, trigger conditions, CVSS, CWE, proof of concept, and fixed versions. Avoid assuming exploitability beyond local privilege escalation on HarmonyOS 2.0.
Mitigation direction
- Inventory Huawei HarmonyOS devices and identify any running HarmonyOS 2.0.
- Review Huawei’s June 2021 HarmonyOS security update guidance for applicability.
- Apply vendor-recommended HarmonyOS updates where available and operationally safe.
- Restrict untrusted local app installation on affected devices.
- Prioritize managed or high-value devices used by privileged personnel.
Validation and detection
- Confirm device OS version and vendor patch status through asset management.
- Map affected devices to business owners and usage sensitivity.
- Check Huawei advisory references for fixed build or update applicability.
- Review mobile device management controls for app installation restrictions.
- Monitor vendor and CVE records for added severity or fix details.
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-2021-22425 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.