CVE-2022-20821

Vulnerability details

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.

Added to CISA KEV: 2022-05-23

Ransomware campaign use: Unknown

CISA due date: 2022-06-13

Defensive guidance from CISA

Apply updates per vendor instructions.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.