Executive Summary

Informations
Name CVE-2021-1624 First vendor Publication 2021-09-23
Vendor Cve Last vendor Modification 2021-10-05

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 8.6
Base Score 8.6 Environmental Score 8.6
impact SubScore 4 Temporal Score 8.6
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1624

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 17
Os 974

Sources (Detail)

Source Url
CISCO https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...

Alert History

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Date Informations
2021-10-14 01:43:29
  • Multiple Updates
2021-10-13 00:23:09
  • Multiple Updates
2021-10-08 09:23:03
  • Multiple Updates
2021-10-08 01:43:55
  • Multiple Updates
2021-10-06 00:22:58
  • Multiple Updates
2021-09-24 01:45:41
  • Multiple Updates
2021-09-24 01:43:04
  • Multiple Updates
2021-09-23 17:22:52
  • Multiple Updates
2021-09-23 09:22:55
  • First insertion