By lack of announcement topic, I'm taking the liberty:
Zimbra Collaboration Joule 8.8.15 Patch 20 GA Release
I don't know what a joule is (aside from a unit of energy), but I guess it's a suite.
"Heap-based buffer overflow vulnerabilities in PHP < 7.3.10" has a 9.8 rating. "Upgraded Apache to 2.4.46 to avoid multiple vulnerabilities. " has a 7.8.
On my server, there are 59 Zimbra updates waiting.
Zimbra 8.8.15 patch 20 CVE rating 9.8
Re: Zimbra 8.8.15 patch 20 CVE rating 9.8
Joule is the nickname of this ZCS version (8.8.15).