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CVE-2022-20870

Cisco IOS XE Software for Catalyst Switches MPLS Denial of Service Vulnerability

Published: Oct 10, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-130
NVD MITRE
8.6CVSSHIGH
EPSS Score
0.8%
Top 47.0%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

A vulnerability in the egress MPLS packet processing function of Cisco IOS XE Software for Cisco Catalyst 3650, Catalyst 3850, and Catalyst 9000 Family Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient input validation of IPv4 traffic. An attacker could exploit this vulnerability by sending a malformed packet out of an affected MPLS-enabled interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-130NVD-CWE-Other

Affected Products

Cisco IOS XE SoftwareCiscoNetworking Infrastructure
Cisco IOS XECisco Systems Inc.Networking Infrastructure
Cisco Catalyst 3650 Series SwitchesCisco Systems Inc.Networking Infrastructure
Cisco Catalyst 3850 Series SwitchesCisco Systems Inc.Networking Infrastructure
Cisco Catalyst 9300 Series SwitchesCisco Systems Inc.Networking Infrastructure
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco
and 4 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
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-mpls-dos-Ab4OUL3
tools.cisco.com
https://nvd.nist.gov/vuln/detail/CVE-2022-20870
nvd.nist.gov

Timeline

Published
Oct 10, 2022
Last Updated
Nov 21, 2024

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