What is CVE-2021-22117?

CVE-2021-22117 is a high-severity vulnerability in Broadcom Rabbitmq Server, classified under Code Injection. CVSS score: 7.8/10. Published 2021-05-18.

How severe is CVE-2021-22117?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Broadcom Rabbitmq Server

CVE-2021-22117

RabbitMQ installers on Windows prior to version 3.8.16 do not harden plugin directory permissions, potentially allowing attackers with sufficient local filesystem permissions to add arbitrary plugins.

Vulnerability class: RCE (Remote Code Execution)

Published 2021-05-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (48.3th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Broadcom Rabbitmq Server
Microsoft Windows
Rabbitmq — versions RabbitMQ Windows installers prior to version 3.8.16

Weakness classification (CWE)

References

tanzu.vmware.com/security/cve-2021-22117 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-22117?: CVE-2021-22117 is a high-severity vulnerability in Broadcom Rabbitmq Server, classified under Code Injection. CVSS score: 7.8/10. Published 2021-05-18.
How severe is CVE-2021-22117?: High severity. CVSS v3 base score is 7.8 out of 10.