Critical and high-severity bugs
https://www.bleepingcomputer.com/news/security/qualpwn-bugs-in-snapdragon-soc-can-attack-android-over-the-air/
Two serious vulnerabilities in Qualcomm's Snapdragon system-on-a-chip (SoC) WLAN firmware could be leveraged to compromise the modem and the Android kernel over the air.
The flaws were found in Qualcomm's Snapdragon 835 and 845 WLAN component. The tests were made on Google Pixel 2 and 3 but any unpatched phone running one of the two SoCs is vulnerable.