CVE-2026-20177

Vendor

Cisco

CVSS

5.3

Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.

1. 14
   Cisco advisory Cisco PSIRT 19 Aug 2026

   Cisco Industrial Ethernet 1000 Series Switches Denial of Service Vulnerability

   A vulnerability in the handling of management plane packets by Cisco Industrial Ethernet (IE) 1000 Series Switches could allow an unauthenticated, remote attacker to cause the device manager, SSH, or API to become inaccessible.…

   CVE-2026-20177 Cisco
2. 3
   CVE NVD 19 Aug 2026

   A vulnerability in the handling of management plane packets by Cisco Industrial Ethernet (IE) 1000 Series Switches could allow an unauthenticated…

   A vulnerability in the handling of management plane packets by Cisco Industrial Ethernet (IE) 1000 Series Switches could allow an unauthenticated, remote attacker to cause the device manager, SSH, or API to become…

   CVSS 5.3 CVE-2026-20177 Cisco