New issue discovered on 15th December: https://www.praetorian.com/blog/log4j-2-15-0-stills-allows-for-exfiltration-of-sensitive-data/
Tableau KB on the issue and patching the issue: https://kb.tableau.com/articles/issue/Apache-Log4j2-vulnerability-Log4shell
Salesforce products affected: https://help.salesforce.com/s/articleView?id=000363736&type=1

0:00 Intro
2:30 Upgrade to fix for 2020.4 or newer
3:50 Take note if you use Prep
5:40 If you cant upgrade, Option 2 to fix