CVE-2022-20821

unknown KEV

Published 2022-05-23 · Modified 2022-05-23

CVSS v3

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CVSS v2

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VIR risk

1.5

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.

CISA KEV

Vendor: Cisco
Product: IOS XR
Due date: 2022-06-13

Predictions

Exploit likelihood

99%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: cisa-kev — https://nvd.nist.gov/vuln/detail/CVE-2022-20821

Exploits

References

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

Verify integrity in audit chain (admin only). AS-IS.