Description
A vulnerability in the health check RPM of Cisco IOS XR Software could allow an unauthenticated, remote attacker to access the Redis instance that is running within the NOSi container. This vulnerability exists because the health check RPM opens TCP port 6379 by default upon activation. An attacker could exploit this vulnerability by connecting to the Redis instance on the open port. A successful exploit could allow the attacker to write to the Redis in-memory database, write arbitrary files to the container filesystem, and retrieve information about the Redis database. Given the configuration of the sandboxed container that the Redis instance runs in, a remote attacker would be unable to execute remote code or abuse the integrity of the Cisco IOS XR Software host system.
Published: 2022-05-26
Score: 6.5 Medium
EPSS: 8.8% Low
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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History

Wed, 22 Oct 2025 00:30:00 +0000


Tue, 21 Oct 2025 20:30:00 +0000


Tue, 21 Oct 2025 19:30:00 +0000


Tue, 29 Oct 2024 16:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2022-05-23'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Cisco 8201 8202 8208 8212 8218 Ios Xr Ncs-55a1-24h Ncs-55a1-24q6h-s Ncs-55a1-36h-s Ncs-55a1-36h-se Ncs-55a1-36h-se-s Ncs-55a2-mod-hd-s Ncs-55a2-mod-hx-s Ncs-55a2-mod-s Ncs-55a2-mod-se-h-s Ncs-55a2-mod-se-s Ncs 1001 Ncs 1002 Ncs 1004 Ncs 5001 Ncs 5002 Ncs 5501-se Ncs 5502-se Ncs 5504 Ncs 5508 Ncs 5516 Ncs 55a1 Ncs 55a2
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2025-10-21T23:15:39.420Z

Reserved: 2021-11-02T00:00:00.000Z

Link: CVE-2022-20821

cve-icon Vulnrichment

Updated: 2024-08-03T02:24:49.991Z

cve-icon NVD

Status : Analyzed

Published: 2022-05-26T14:15:08.123

Modified: 2025-10-28T13:59:06.040

Link: CVE-2022-20821

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses