Executive Summary

Informations
Name CVE-2022-20623 First vendor Publication 2022-02-23
Vendor Cve Last vendor Modification 2022-03-02

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged 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:M/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.1 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the rate limiter for Bidirectional Forwarding Detection (BFD) traffic of Cisco NX-OS Software for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause BFD traffic to be dropped on an affected device. This vulnerability is due to a logic error in the BFD rate limiter functionality. An attacker could exploit this vulnerability by sending a crafted stream of traffic through the device. A successful exploit could allow the attacker to cause BFD traffic to be dropped, resulting in BFD session flaps. BFD session flaps can cause route instability and dropped traffic, resulting in a denial of service (DoS) condition. This vulnerability applies to both IPv4 and IPv6 traffic.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20623

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 619
Os 776

Sources (Detail)

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

Alert History

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Date Informations
2022-10-11 13:11:40
  • Multiple Updates
2022-10-11 01:24:20
  • Multiple Updates
2022-08-03 02:06:41
  • Multiple Updates
2022-07-16 02:05:22
  • Multiple Updates
2022-04-07 12:51:51
  • Multiple Updates
2022-04-06 01:58:15
  • Multiple Updates
2022-03-08 21:22:59
  • Multiple Updates
2022-03-07 21:23:00
  • Multiple Updates
2022-03-02 21:22:55
  • Multiple Updates
2022-02-24 21:22:54
  • Multiple Updates
2022-02-24 00:22:55
  • Multiple Updates
2022-02-23 21:22:55
  • First insertion