Google has started rolling out the January Android security update to all applicable devices. This update is for mostly the Google devices which includes Pixel series, & Nexus series smartphones. As always the roll out is OTA for automatic and for manual process one can download the OTA zip file separately here.
As per the Android Security Bulletin for the month of January, about 20 issues are resolved in this January Android security patch. The vulnerabilities range from high to critical, and the most severe is related to the media framework that could let a remote attacker execute arbitrary code within the context of a privileged process. “The severity assessment is based on the effect that exploiting the vulnerability would possibly have on an affected device, assuming the platform and service mitigations are turned off for development purposes or if successfully bypassed,” the bulletinreads, confirming that no reports of active customer exploitation or abuse of the newly reported issues have emerged so far.