Security readout for executives and security teams
Plain-English summary
CVE-2021-37000 is a high-severity permission management issue affecting some Huawei wearable devices associated with HarmonyOS 2.0. A local attacker could potentially gain unauthorized access to sensitive information or alter data. The public record is sparse, so exposure assessment should focus on confirmed Huawei wearable inventory and Huawei’s bulletin.
Executive priority
Treat this as a targeted device-management issue, not a broad network emergency. Prioritize environments using Huawei wearables in regulated, executive, operational, or sensitive-data contexts.
Technical view
The CVSS 3.1 vector is AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N, scoring 7.7. The issue is categorized under CWE-255 and CWE-276, indicating credential or permission management weakness. Sources do not provide component-level detail, affected model names, exploit primitives, or fixed build identifiers.
Likely exposure
Organizations are most likely exposed if they manage Huawei wearables running HarmonyOS 2.0. The local attack vector reduces internet-scale risk, but no privileges or user interaction are required once local access conditions exist.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Public details do not include exploit availability, attack procedure, or real-world incident reporting.
Researcher notes
Evidence is incomplete. The public description only states a permission management vulnerability in some Huawei wearables. Do not infer affected models, exploitability beyond the CVSS vector, or remediation specifics without Huawei bulletin confirmation.
Mitigation direction
- Review Huawei’s wearable security bulletin for CVE-2021-37000 guidance.
- Update affected HarmonyOS 2.0 wearables according to Huawei’s instructions.
- Inventory Huawei wearables before assuming exposure is absent.
- Remove unmanaged affected wearables from sensitive workflows until addressed.
- Reduce local access to affected devices where practical.
Validation and detection
- Identify Huawei wearables running HarmonyOS 2.0 in asset records.
- Compare device firmware or patch level against Huawei’s bulletin.
- Confirm whether affected devices are managed, updated, or retired.
- Document compensating controls for devices awaiting vendor remediation.
- Track CVE status for any later vendor clarification.
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.
CWE-255: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-276: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-37000 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
- High
- CVSS
- 7.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N2.55.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.7HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source materials
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.
Credentials Management Errors
Credentials Management Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Incorrect Default Permissions
Incorrect Default Permissions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.