Description
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.
Published: 2021-09-23
Score: 8.6 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2021-7091 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

Thu, 07 Nov 2024 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Cisco Asr 1000 Asr 1000-esp100 Asr 1000-x Asr 1001 Asr 1001-hx Asr 1001-hx R Asr 1001-x Asr 1001-x R Asr 1002 Asr 1002-hx Asr 1002-hx R Asr 1002-x Asr 1002-x R Asr 1004 Asr 1006 Asr 1006-x Asr 1009-x Asr 1013 Asr 1023 Ios Xe
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-07T21:59:45.997Z

Reserved: 2020-11-13T00:00:00.000Z

Link: CVE-2021-1624

cve-icon Vulnrichment

Updated: 2024-08-03T16:18:10.396Z

cve-icon NVD

Status : Modified

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

Modified: 2024-11-21T05:44:46.050

Link: CVE-2021-1624

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses