CVE-2022-20625

Published Feb 23, 2022

Last updated a year ago

Overview

Description
A vulnerability in the Cisco Discovery Protocol service of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the service to restart, resulting in a denial of service (DoS) condition. This vulnerability is due to improper handling of Cisco Discovery Protocol messages that are processed by the Cisco Discovery Protocol service. An attacker could exploit this vulnerability by sending a series of malicious Cisco Discovery Protocol messages to an affected device. A successful exploit could allow the attacker to cause the Cisco Discovery Protocol service to fail and restart. In rare conditions, repeated failures of the process could occur, which could cause the entire device to restart.
Source
ykramarz@cisco.com
NVD status
Modified

Social media

Hype score
Not currently trending

Risk scores

CVSS 3.1

Type
Primary
Base score
4.3
Impact score
1.4
Exploitability score
2.8
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
6.1
Impact score
6.9
Exploitability score
6.5
Vector string
AV:A/AC:L/Au:N/C:N/I:N/A:C

Weaknesses

nvd@nist.gov
NVD-CWE-noinfo
ykramarz@cisco.com
CWE-399

Configurations