Security readout for executives and security teams
Plain-English summary
CVE-2021-0177 is a denial-of-service issue in Intel PROSet/Wireless Wi-Fi and Killer Wi-Fi software on Windows 10 and 11. An attacker nearby on the network could potentially disrupt availability. The cited sources do not indicate data theft, privilege gain, or active exploitation.
Executive priority
Treat this as a moderate endpoint availability risk. It is not described as remote internet compromise, but disruption on laptops or operational Windows devices using affected Wi-Fi software could affect productivity and local service continuity.
Technical view
The CVE describes improper validation of input consistency, mapped to CWE-20. CVSS 3.1 is 6.5 with adjacent attack vector, low complexity, no privileges, no user interaction, unchanged scope, and high availability impact only.
Likely exposure
Exposure is most relevant to Windows 10 and 11 endpoints running affected Intel PROSet/Wireless Wi-Fi or Killer Wi-Fi software. The source bundle does not provide specific affected or fixed versions, so version validation depends on Intel SA-00539.
Exploitation context
The vulnerability requires adjacent access, so risk is tied to nearby wireless or local-network proximity rather than internet-wide exposure. CISA KEV is false, and the provided sources do not state active exploitation or public exploit availability.
Researcher notes
Key constraints are adjacent attack vector and availability-only impact. The public source bundle gives the CVSS vector and product family but not exact affected versions or fix details. Avoid claiming exploitation or weaponization without additional cited evidence.
Mitigation direction
- Review Intel SA-00539 for affected versions and vendor remediation guidance.
- Inventory Windows 10 and 11 endpoints with Intel or Killer Wi-Fi software.
- Apply Intel-recommended updates or configuration guidance where affected.
- Prioritize mobile, executive, and operational endpoints using Wi-Fi in shared environments.
- Monitor vendor advisories for corrected version details if local records are incomplete.
Validation and detection
- Compare installed Intel PROSet/Wireless and Killer Wi-Fi versions against Intel SA-00539.
- Confirm endpoint management shows remediation completed on affected Windows 10 and 11 assets.
- Check crash, driver, and availability telemetry for Wi-Fi disruption patterns.
- Validate high-risk wireless endpoints are included in patch compliance reporting.
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-2021-0177 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.