Security readout for executives and security teams
Plain-English summary
Microsoft disclosed a medium-severity Azure Sphere vulnerability that could expose sensitive information and affect availability. The supplied data identifies Azure Sphere version 20.00 as affected. The attack vector is local and high-complexity, so this is important for Azure Sphere fleets but not evidence of broad remote exposure.
Executive priority
Address through normal vulnerability management unless Azure Sphere 20.00 supports critical operations or sensitive environments. The issue is not marked actively exploited, but the potential confidentiality and availability impacts justify timely remediation.
Technical view
CVSS 3.1 is 6.7: AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H. The source describes an Azure Sphere information disclosure issue with high confidentiality and availability impact. No CWE, exploit details, or detailed root cause are included in the provided bundle.
Likely exposure
Exposure is limited to environments running Microsoft Azure Sphere 20.00. The CVSS vector indicates local access is required, with high attack complexity, no privileges, and no user interaction.
Exploitation context
The bundle does not support active exploitation. KEV is false, and CVSS exploit code maturity is listed as unproven. Treat exploit status as not publicly confirmed from these sources.
Researcher notes
The public bundle is sparse: title, affected product/version, CVSS vector, and MSRC reference are available, but no CWE or root-cause detail is provided. Avoid assuming exploit primitives or product variants beyond Azure Sphere 20.00.
Mitigation direction
- Check Microsoft MSRC guidance for the official remediation path.
- Inventory Azure Sphere deployments and identify version 20.00 assets.
- Prioritize remediation for production, safety, or sensitive-data devices.
- Monitor Microsoft advisories for updated affected-version or mitigation details.
Validation and detection
- Confirm whether any Azure Sphere assets run version 20.00.
- Verify remediation status against the Microsoft advisory.
- Review asset logs for unusual local access or device instability.
- Document affected devices, remediation dates, and remaining exceptions.
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-2021-41374 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
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C
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:H/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C1.45.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41374CVE 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.