There is some comment here about it:
https://community.safe.com/s/question/0D5Dm00001EQXg5KAH/is-fme-server-flow-vulnerable-for-apache-activemq-cve202346604httpswwwcveorgcverecordidcve202346604
Already have an account? Login
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
Sorry, we're still checking this file's contents to make sure it's safe to download. Please try again in a few minutes.
Sorry, our virus scanner detected that this file isn't safe to download.