CVE-2022-20870

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

Published Oct 10, 2022 CVSS 3.1 · 8.6 High EPSS 1.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2022-26120 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Subscriptions

Cisco Catalyst 3650 Catalyst 3650-12x48fd-e Catalyst 3650-12x48fd-l Catalyst 3650-12x48fd-s Catalyst 3650-12x48uq Catalyst 3650-12x48uq-e Catalyst 3650-12x48uq-l Catalyst 3650-12x48uq-s Catalyst 3650-12x48ur Catalyst 3650-12x48ur-e Catalyst 3650-12x48ur-l Catalyst 3650-12x48ur-s Catalyst 3650-12x48uz Catalyst 3650-12x48uz-e Catalyst 3650-12x48uz-l Catalyst 3650-12x48uz-s Catalyst 3650-24pd Catalyst 3650-24pd-e Catalyst 3650-24pd-l Catalyst 3650-24pd-s Catalyst 3650-24pdm Catalyst 3650-24pdm-e Catalyst 3650-24pdm-l Catalyst 3650-24pdm-s Catalyst 3650-24ps-e Catalyst 3650-24ps-l Catalyst 3650-24ps-s Catalyst 3650-24td-e Catalyst 3650-24td-l Catalyst 3650-24td-s Catalyst 3650-24ts-e Catalyst 3650-24ts-l Catalyst 3650-24ts-s Catalyst 3650-48fd-e Catalyst 3650-48fd-l Catalyst 3650-48fd-s Catalyst 3650-48fq Catalyst 3650-48fq-e Catalyst 3650-48fq-l Catalyst 3650-48fq-s Catalyst 3650-48fqm Catalyst 3650-48fqm-e Catalyst 3650-48fqm-l Catalyst 3650-48fqm-s Catalyst 3650-48fs-e Catalyst 3650-48fs-l Catalyst 3650-48fs-s Catalyst 3650-48pd-e Catalyst 3650-48pd-l Catalyst 3650-48pd-s Catalyst 3650-48pq-e Catalyst 3650-48pq-l Catalyst 3650-48pq-s Catalyst 3650-48ps-e Catalyst 3650-48ps-l Catalyst 3650-48ps-s Catalyst 3650-48td-e Catalyst 3650-48td-l Catalyst 3650-48td-s Catalyst 3650-48tq-e Catalyst 3650-48tq-l Catalyst 3650-48tq-s Catalyst 3650-48ts-e Catalyst 3650-48ts-l Catalyst 3650-48ts-s Catalyst 3650-8x24pd-e Catalyst 3650-8x24pd-l Catalyst 3650-8x24pd-s Catalyst 3650-8x24uq Catalyst 3650-8x24uq-e Catalyst 3650-8x24uq-l Catalyst 3650-8x24uq-s Catalyst 3850 Catalyst 3850-12s-e Catalyst 3850-12s-s Catalyst 3850-12x48u Catalyst 3850-12xs-e Catalyst 3850-12xs-s Catalyst 3850-16xs-e Catalyst 3850-16xs-s Catalyst 3850-24p-e Catalyst 3850-24p-l Catalyst 3850-24p-s Catalyst 3850-24pw-s Catalyst 3850-24s-e Catalyst 3850-24s-s Catalyst 3850-24t-e Catalyst 3850-24t-l Catalyst 3850-24t-s Catalyst 3850-24u Catalyst 3850-24u-e Catalyst 3850-24u-l Catalyst 3850-24u-s Catalyst 3850-24xs Catalyst 3850-24xs-e Catalyst 3850-24xs-s Catalyst 3850-24xu Catalyst 3850-24xu-e Catalyst 3850-24xu-l Catalyst 3850-24xu-s Catalyst 3850-32xs-e Catalyst 3850-32xs-s Catalyst 3850-48f-e Catalyst 3850-48f-l Catalyst 3850-48f-s Catalyst 3850-48p-e Catalyst 3850-48p-l Catalyst 3850-48p-s Catalyst 3850-48pw-s Catalyst 3850-48t-e Catalyst 3850-48t-l Catalyst 3850-48t-s Catalyst 3850-48u Catalyst 3850-48u-e Catalyst 3850-48u-l Catalyst 3850-48u-s Catalyst 3850-48xs Catalyst 3850-48xs-e Catalyst 3850-48xs-f-e Catalyst 3850-48xs-f-s Catalyst 3850-48xs-s Catalyst 3850-nm-2-40g Catalyst 3850-nm-8-10g Catalyst 9300 Catalyst 9300-24p-a Catalyst 9300-24p-e Catalyst 9300-24s-a Catalyst 9300-24s-e Catalyst 9300-24t-a Catalyst 9300-24t-e Catalyst 9300-24u-a Catalyst 9300-24u-e Catalyst 9300-24ux-a Catalyst 9300-24ux-e Catalyst 9300-48p-a Catalyst 9300-48p-e Catalyst 9300-48s-a Catalyst 9300-48s-e Catalyst 9300-48t-a Catalyst 9300-48t-e Catalyst 9300-48u-a Catalyst 9300-48u-e Catalyst 9300-48un-a Catalyst 9300-48un-e Catalyst 9300-48uxm-a Catalyst 9300-48uxm-e Catalyst 9300l Catalyst 9300l-24p-4g-a Catalyst 9300l-24p-4g-e Catalyst 9300l-24p-4x-a Catalyst 9300l-24p-4x-e Catalyst 9300l-24t-4g-a Catalyst 9300l-24t-4g-e Catalyst 9300l-24t-4x-a Catalyst 9300l-24t-4x-e Catalyst 9300l-48p-4g-a Catalyst 9300l-48p-4g-e Catalyst 9300l-48p-4x-a Catalyst 9300l-48p-4x-e Catalyst 9300l-48t-4g-a Catalyst 9300l-48t-4g-e Catalyst 9300l-48t-4x-a Catalyst 9300l-48t-4x-e Catalyst 9300lm Catalyst 9300x Catalyst 9400 Catalyst 9500 Catalyst 9500h Catalyst 9600 Catalyst C3850-12x48u-e Catalyst C3850-12x48u-l Catalyst C3850-12x48u-s Catalyst C9500-12q Catalyst C9500-12q-a Catalyst C9500-12q-e Catalyst C9500-16x Catalyst C9500-16x-a Catalyst C9500-16x-e Catalyst C9500-24q Catalyst C9500-24q-a Catalyst C9500-24q-e Catalyst C9500-24y4c Catalyst C9500-32c Catalyst C9500-32qc Catalyst C9500-40x Catalyst C9500-40x-a Catalyst C9500-40x-e Catalyst C9500-48y4c Catalyst C9600-lc-24c Catalyst C9600-lc-48s Catalyst C9600-lc-48tx Catalyst C9600-lc-48yl Ios Xe
Weaknesses

Sources

Status
PUBLISHED
Assigner
cisco
Published
Updated
Nov 1, 2024, 6:49 PM
Reserved
Nov 2, 2021, 12:00 AM
Status
Modified
Published
Oct 10, 2022, 9:15 PM
Modified
Jun 17, 2026, 4:25 AM