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CVE-2022-20625

Cisco FXOS and NX-OS Software Cisco Discovery Protocol Service Denial of Service Vulnerability

Published: Feb 23, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-399
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
3.3%
Top 13.0%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-399NVD-CWE-noinfo

Affected Products

FX-OSCisco Systems Inc.
EmbeddedFirmware
Networking Infrastructure / router-switch
NX-OSCisco Systems Inc.
On-prem
Networking Infrastructure / router-switch
Cisco UCS Central SoftwareCisco Systems Inc.
On-prem
Networking Infrastructure / router-switch
firepower extensible operating systemcisco
On-premOS
Networking Infrastructure / firewall
nx-oscisco
On-premFirmware
Networking Infrastructure / router-switch
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
and 1 more affected products View all →

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cdp-dos-G8DPLWYG
tools.cisco.com
https://nvd.nist.gov/vuln/detail/CVE-2022-20625
nvd.nist.gov
https://vuldb.com/ru/?id.193658
vuldb.com
and 1 more references View all →

Timeline

Published
Feb 23, 2022
Last Updated
Nov 21, 2024

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