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. This vulnerability is due to insufficient protection against management plane flooding attacks. An attacker could exploit this vulnerability by sending a high rate of ICMP, SSH, or HTTP traffic to an affected device. A successful exploit could allow the attacker to cause the CPU of the device to increase, resulting in a denial of service (DoS) condition on the device manager web GUI, SSH, or API. Data traffic through the device is not affected. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-20177US | — | — | ||
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… | ||||
references
External citations — patches, advisories, analysis.
- Security Vulnerability Policyexternal
- Cisco Industrial Ethernet 1000 Series Switches Denial of Service Vulnerabilityself
- Cisco's Transition to a Risk-Based Vulnerability Disclosure Modelexternal
- Cisco Security Vulnerability Policyexternal
- considering software upgradesexternal
- Cisco Support and Downloadsexternal
- Cisco Technical Assistance Center (TAC)external
- the advisoriesexternal
remediations (13)
- Fixed1.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.6
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.7.0
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.8.0
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.8.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.8.2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.9.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.9.2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.9.2a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.9.3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.9.4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed1.9.5
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
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