KEV Entry

CVE-2026-20051

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-20051

2026-06-01 11:10 UTC

Timestamps

2026-06-01

2026-06-01

Scope

KEVIntel entry: Cisco Nexus 3600-R and 9500-R Series Switching Platforms Layer 2 Loop Denial of Service Vulnerability | Affected: Cisco / Cisco NX-OS Software | CVSS: 7.4 (HIGH) | EPSS: 0.00156 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2026-20051', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-20051'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2026-20051'}

2d956365-1903-4b95-a69a-ad02fff10c06

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:42 UTC

2026-06-19 12:42 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-01T11:10:29.371Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 7.4,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.05104,
  "epss_score": 0.00156,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "Cisco NX-OS Software",
  "title": "Cisco Nexus 3600-R and 9500-R Series Switching Platforms Layer 2 Loop Denial of Service Vulnerability",
  "used_in_malware": "unknown",
  "vendor": "Cisco"
}
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