Security readout for executives and security teams
Plain-English summary
CVE-2021-0072 is a local information-disclosure flaw in firmware for some Intel PROSet/Wireless Wi-Fi products and some Killer Wi-Fi products. An attacker already holding local privileged access could potentially expose sensitive information. This is not described as remote or unauthenticated.
Executive priority
Treat this as a medium-priority endpoint firmware hygiene issue. It does not indicate remote compromise by itself, but it can increase data exposure risk after local privileged access is obtained. Prioritize validation through hardware inventory and vendor update channels.
Technical view
The issue is improper input validation, mapped to CWE-20, in affected Wi-Fi firmware. The CVSS 3.1 score is 5.5: local attack vector, low complexity, low privileges required, no user interaction, unchanged scope, high confidentiality impact, and no integrity or availability impact.
Likely exposure
Exposure is most likely on endpoints using affected Intel PROSet/Wireless Wi-Fi firmware across multiple operating systems, and Killer Wi-Fi on Windows 10 or 11. The source bundle does not list exact affected versions, so version validation requires Intel advisory details or OEM guidance.
Exploitation context
No CISA KEV listing is reported in the source bundle, and no cited source states active exploitation. The disclosed scenario requires local access and a privileged user, which limits broad internet-scale risk but matters on shared, compromised, or poorly administered endpoints.
Researcher notes
Key constraints are local access and low privileges, with confidentiality-only impact. The public bundle does not provide exploit details, affected version ranges, or specific fixed versions. Avoid assuming broader product coverage beyond Intel PROSet/Wireless Wi-Fi and Killer Wi-Fi as described.
Mitigation direction
- Review Intel advisory INTEL-SA-00539 for affected firmware and product guidance.
- Apply Intel or OEM-provided firmware and driver updates where applicable.
- Prioritize managed laptops and workstations with Intel or Killer Wi-Fi adapters.
- Reduce unnecessary local privileged access on endpoints.
- Track remediation through endpoint inventory and patch-management records.
Validation and detection
- Inventory endpoints using Intel PROSet/Wireless Wi-Fi or Killer Wi-Fi adapters.
- Compare installed firmware and driver versions against Intel advisory guidance.
- Confirm Windows 10 and 11 Killer Wi-Fi systems are included in review scope.
- Check whether affected endpoints allow routine local privileged user access.
- Document systems where exact affected versions cannot be confirmed.
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-2021-0072 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.intel.com/content/www/us/en/security-center/advisory/intel-sa-00539.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.