CVE-2022-20821 — Cisco IOS XR Open Port Vulnerability

CISA KEV listed Added May 23, 2022 Remediate by June 13, 2022

Description

Cisco IOS XR software health check opens TCP port 6379 by default on activation. An attacker can connect to the Redis instance on the open port and allow access to the Redis instance that is running within the NOSi container.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2022-20821

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