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CVE-2026-20177 Cisco Industrial Ethernet 1000 Series Switches Denial of Service Vulnerability

🗓️ 19 Aug 2026 16:16:50Reported by ciscoType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Cisco IE 1000 Series Switches suffer unauthenticated DoS via management plane ICMP/SSH/HTTP flooding.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cisco
Cisco
Cisco Industrial Ethernet 1000 Series Switches Denial of Service Vulnerability
19 Aug 202616:00
cisco
cisco
Cisco
Cisco Advance Notification for Publication of August 19, 2026, Security Advisories
12 Aug 202616:00
cisco
cve
CVE
CVE-2026-20177
19 Aug 202616:16
cve
euvd
EUVD
EUVD-2026-62559
19 Aug 202616:16
euvd
nvd
NVD
CVE-2026-20177
19 Aug 202617:18
nvd
ptsecurity
Positive Technologies
PT-2026-78491
19 Aug 202600:00
ptsecurity
[
  {
    "vendor": "Cisco",
    "product": "Cisco Industrial Ethernet Switches",
    "versions": [
      {
        "version": "1.1",
        "status": "affected"
      },
      {
        "version": "1.2",
        "status": "affected"
      },
      {
        "version": "1.8.0",
        "status": "affected"
      },
      {
        "version": "1.8.2",
        "status": "affected"
      },
      {
        "version": "1.7.0",
        "status": "affected"
      },
      {
        "version": "1.3",
        "status": "affected"
      },
      {
        "version": "1.9.1",
        "status": "affected"
      },
      {
        "version": "1.6",
        "status": "affected"
      },
      {
        "version": "1.8.1",
        "status": "affected"
      },
      {
        "version": "1.9.2",
        "status": "affected"
      },
      {
        "version": "1.9.2a",
        "status": "affected"
      },
      {
        "version": "1.9.3",
        "status": "affected"
      },
      {
        "version": "1.9.4",
        "status": "affected"
      },
      {
        "version": "1.9.5",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]

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