Security readout for executives and security teams
Plain-English summary
This is a local denial-of-service risk in firmware for some Intel processors. A user who already has high privileges on the affected system may be able to disrupt availability. The sources do not indicate data theft, integrity impact, remote exploitation, or confirmed active exploitation.
Executive priority
Handle through normal vulnerability and firmware governance unless affected systems support critical availability requirements. This is not currently evidenced as remotely exploitable or actively exploited, but firmware issues can require coordinated maintenance windows.
Technical view
CVE-2021-0093 is CWE-276: incorrect default permissions in Intel processor firmware. CVSS 3.1 is 4.4 with AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H, meaning local access and high privileges are required, with availability as the stated impact.
Likely exposure
Exposure is limited to systems using affected Intel processor firmware identified in Intel SA-00527. NetApp customers should also review NTAP-20220210-0007 for vendor-specific impact. The bundle does not list exact processor models or firmware versions.
Exploitation context
No CISA KEV listing is provided, and the source bundle contains no evidence of active exploitation. The attack requires local access and high privileges, so risk is higher where privileged access is broadly delegated or shared.
Researcher notes
Evidence is limited to the CVE description, CVSS vector, Intel advisory reference, and NetApp advisory reference. Do not assume affected model lists, exploitability beyond local privileged denial of service, or specific fixes without reviewing vendor advisories.
Mitigation direction
- Review Intel SA-00527 for affected processor and firmware guidance.
- Check hardware OEM guidance for validated firmware or BIOS updates.
- NetApp customers should review NTAP-20220210-0007 for product-specific direction.
- Restrict local privileged access to systems with affected Intel firmware.
- Schedule remediation through firmware maintenance windows where applicable.
Validation and detection
- Inventory Intel processor models and firmware versions across managed assets.
- Compare inventory against affected products listed in Intel SA-00527.
- Confirm whether NetApp assets match the NetApp advisory scope.
- Verify local administrator access is limited and auditable.
- Document firmware remediation status 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.
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-2021-0093 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
- 4.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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:H/UI:N/S:U/C:N/I:N/A:H0.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.4MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00527.htmlCVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220210-0007/CVE reference · x_refsource_CONFIRM
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.