A vulnerability in the Rate Limiting Network Address Translation (NAT) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause high CPU utilization in the Cisco QuantumFlow Processor of an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to mishandling of the rate limiting feature within the QuantumFlow Processor. An attacker could exploit this vulnerability by sending large amounts of traffic that would be subject to NAT and rate limiting through an affected device. A successful exploit could allow the attacker to cause the QuantumFlow Processor utilization to reach 100 percent on the affected device, resulting in a DoS condition.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-09-23T02:25:20.433136Z

Updated: 2024-09-17T03:53:03.000Z

Reserved: 2020-11-13T00:00:00

Link: CVE-2021-1624

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-23T03:15:13.610

Modified: 2023-11-07T03:28:49.513

Link: CVE-2021-1624

cve-icon Redhat

No data.