Google has admitted that it's aware of the vulnerability being exploited in the wild but the technical details of the vulnerability are being withheld to give the 3.2 billion chrome users, the time to deploy the update and secure their networks. The details of the vulnerabilities fixed are as follows:
Type confusion in V8
To install this update on your Windows machines, using Vulnerability Manager Plus, initiate a sync between the Central Patch Repository and the Vulnerability Manager Plus server. Once the sync is complete, search for the following Patch IDs or Bulletin ID and deploy them to your target systems.
Google Chrome (x64) (99.0.4844.84)
Google Chrome (99.0.4844.84)