# CVE-2022-20821: A Cisco IOS XR bug is being used in attacks

Status: Being used now (CISA KEV, added 2022-05-23)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Cisco IOS XR (CVE-2022-20821) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2022-20821. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official 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.

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

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.