Security readout for executives and security teams
Plain-English summary
CVE-2021-0175 is a Wi-Fi firmware flaw affecting some Intel PROSet/Wireless and Killer Wi-Fi products. An unauthenticated nearby attacker could potentially cause denial of service. The impact is availability, not data theft or system takeover, based on the provided CVSS vector.
Executive priority
Treat as a moderate endpoint availability issue. Prioritize remediation for mobile workforces, shared offices, and environments where wireless disruption could affect operations. It is not described as enabling data compromise or privilege escalation in the supplied sources.
Technical view
The issue is improper input validation, mapped to CWE-20, involving specified index, position, or offset handling in affected Wi-Fi firmware. CVSS 3.1 is 6.5 with adjacent attack vector, low complexity, no privileges, no user interaction, and high availability impact only.
Likely exposure
Exposure is most relevant to laptops, desktops, and other endpoints with affected Intel PROSet/Wireless Wi-Fi or Killer Wi-Fi components, especially where devices operate near untrusted wireless users. Exact affected versions are not included in the supplied bundle.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The attack vector is adjacent access, meaning the attacker must be near the target wireless environment rather than remote over the internet.
Researcher notes
Do not assume broad product impact beyond the listed Intel PROSet/Wireless and Killer Wi-Fi scope. The supplied bundle lacks specific version ranges and patch identifiers, so validation depends on Intel SA-00539 and OEM mappings.
Mitigation direction
- Inventory endpoints using Intel PROSet/Wireless Wi-Fi or Killer Wi-Fi components.
- Check Intel SA-00539 for exact affected versions and vendor guidance.
- Check OEM support channels for approved Wi-Fi firmware or driver updates.
- Deploy only Intel/OEM-recommended Wi-Fi firmware or driver updates.
- Prioritize endpoints regularly used on public or shared Wi-Fi networks.
Validation and detection
- Confirm whether endpoint wireless hardware matches the affected Intel or Killer product families.
- Record installed Wi-Fi driver and firmware versions from asset inventory.
- Compare installed versions against Intel SA-00539 and OEM guidance.
- Verify updated endpoints report the expected Wi-Fi driver or firmware version.
- Monitor endpoint management tools for Wi-Fi-related denial-of-service symptoms.
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-2021-0175 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/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:N/UI:N/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:A/AC:L/PR:N/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-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.