KEV Entry

CVE-2021-20166

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-20166

2026-06-07 00:00 UTC

Timestamps

2026-06-07

2026-06-07

Scope

KEVIntel entry: Netgear RAX43 version 1.0.3.96 contains a buffer overrun vulnerability. The URL parsing functionality in the cgi-bin endpoint of the router... | Affected: Netgear / RAX43 | CVSS: 8.8 (HIGH) | EPSS: 0.02177 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2021-20166', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-20166'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-20166'}

55f9bd46-b6a0-4478-bef2-cbb7f074e9ca

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-23 14:02 UTC

2026-06-23 14:02 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-07T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 8.8,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.79979,
  "epss_score": 0.02177,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "RAX43",
  "title": "Netgear RAX43 version 1.0.3.96 contains a buffer overrun vulnerability. The URL parsing functionality in the cgi-bin endpoint of the router...",
  "used_in_malware": "unknown",
  "vendor": "Netgear"
}
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