It's basically an infrastructure remote code exploit (RCE) by just sending an email to an organisation. > ACTION NOTICE: Impacted ESG appliances must be immedi

It's basically an infrastructure remote code exploit (RCE) by just sending an email to an organisation. > ACTION NOTICE: Impacted ESG appliances must be immediately replaced regardless of patch version level. If you have not replaced your appliance after receiving notice in your UI, contact support now (support@barracuda.com). CVE max score https://nvd.nist.gov/vuln/detail/CVE-2023-2868 https://nvd.nist.gov/vuln/detail/CVE-2023-2868 Looks like the vulnerability is rooted in Perl.