Security readout for executives and security teams
Plain-English summary
This flaw can let a nearby authenticated user crash or disrupt affected Intel PROSet/Wireless WiFi or Killer WiFi systems. The business impact is availability loss, not data theft, based on the published CVSS vector.
Executive priority
Treat as a normal patch-management item with moderate priority. It can affect endpoint availability, especially in shared wireless environments, but the available evidence does not indicate data compromise, privilege escalation, or confirmed active exploitation.
Technical view
CVE-2021-33114 is improper input validation, CWE-20, in some Intel PROSet/Wireless WiFi products across multiple operating systems and Killer WiFi on Windows 10 and 11. CVSS 3.1 is 5.7, adjacent attack vector, low complexity, low privileges, no user interaction, and high availability impact.
Likely exposure
Exposure is most likely on endpoints using affected Intel PROSet/Wireless WiFi software or Killer WiFi on Windows 10 or 11. The source bundle does not list exact affected versions, so teams must confirm against Intel advisory INTEL-SA-00582 and OEM driver inventories.
Exploitation context
The CVE record describes potential denial of service by an authenticated user with adjacent access. It is not listed as CISA KEV in the provided bundle, and no cited source here confirms active exploitation or public exploit availability.
Researcher notes
Key constraints are AV:A, PR:L, UI:N, and A:H with no confidentiality or integrity impact. The bundle does not provide exact version ranges or patch versions, so validation should be anchored to Intel SA-00582 and asset-specific driver evidence.
Mitigation direction
- Review Intel SA-00582 and OEM advisories for affected adapter and driver versions.
- Update affected Intel PROSet/Wireless WiFi and Killer WiFi components per vendor guidance.
- Prioritize laptops and workstations that regularly use WiFi in shared or public environments.
- Track OEM driver packages where updates are distributed through device manufacturers.
Validation and detection
- Inventory endpoints for Intel PROSet/Wireless WiFi and Killer WiFi software.
- Compare installed driver and software versions against Intel SA-00582 guidance.
- Confirm remediation through endpoint management or vulnerability scanner evidence.
- Reassess systems after OEM or Windows driver updates are applied.
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-20: 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-2021-33114 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
- 5.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:L/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:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H2.13.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.7MediumVector: CVSS:3.1/AV:A/AC:L/PR:L/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-00582.htmlCVE 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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.