Security readout for executives and security teams
Plain-English summary
CVE-2021-46834 is a Huawei permission bypass affecting JAD-AL50 version 102.0.0.225(C00E220R3P4). A local low-privileged attacker could access certain resources on the device. The public sources do not identify the exact resource, patch version, or any active exploitation.
Executive priority
Handle as a moderate, targeted confidentiality risk. It deserves remediation where affected Huawei devices exist, but current sources do not support emergency response unless the environment has exposed or shared affected devices.
Technical view
The issue is classified as CWE-276, incorrect default permissions, in Huawei cross-device task management. CVSS 3.1 is 5.5 with local attack vector, low complexity, low privileges required, no user interaction, unchanged scope, and high confidentiality impact only.
Likely exposure
Exposure appears limited to Huawei JAD-AL50 devices running 102.0.0.225(C00E220R3P4). The CVSS vector indicates local authenticated access is required, so risk is highest where untrusted users or apps can obtain low-privileged local access.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. They also do not provide exploit details. Treat this as a confidentiality-focused local permission bypass rather than a remote takeover based on current evidence.
Researcher notes
Public detail is sparse. The CVE record names the affected version and CWE-276 but does not define the protected resource, permission boundary, patch identifier, or proof-of-concept status. Avoid broad product assumptions beyond JAD-AL50 102.0.0.225(C00E220R3P4).
Mitigation direction
- Check Huawei PSIRT advisory for fixed versions or official mitigations.
- Inventory JAD-AL50 devices and identify the exact firmware version.
- Prioritize vendor updates for devices on 102.0.0.225(C00E220R3P4).
- Limit local access to affected devices until remediated.
- Restrict untrusted apps and accounts on affected devices.
Validation and detection
- Confirm whether any JAD-AL50 assets run 102.0.0.225(C00E220R3P4).
- Compare device firmware against Huawei PSIRT guidance.
- Review device management records for untrusted local users or apps.
- Monitor for unusual access to cross-device task management resources.
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-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-2021-46834 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
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:L/UI:N/S:U/C:H/I:N/A:N1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20220819-01-7e0a6103-enCVE 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.
Incorrect Default Permissions
Incorrect Default Permissions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.