https://wccftech.com/october-security-patch-rolling-out-to-pixel-nexus-devices/

Normally, Google releases the monthly Android security update at around the fifth of every month, but this time around it appears to have arrived early. A number of Google Pixel and Pixel 2 bugs are also addressed in this update including one related to fast charging and Android Auto.

There are 23 issues resolved in the October security patch dated 2018-10-01 and 3 for 2018-10-05. Vulnerabilities range from high to critical, with the most severe relating to the media framework and a remote attacker possibly executing arbitrary code through a crafted file, a recurring theme in the OTA for the past few months.