A new report from Google is highlighting some major security flaws in Samsung's Exynos chips. The report says that there are 18 zero-day vulnerabilities in total, four of which could be exploited remotely to completely compromise a phone without requiring any user interaction. The other 14 flaws are not as severe, but still require either a rogue mobile network insider or an attacker with local access to the device. The four vulnerabilities that can be exploited remotely are a major concern, as they would allow a threat actor to gain entrenched access to cellular information passing in and out of the targeted device. Google has not released any additional details about the bugs, but says that they are well within reach of skilled attackers. These vulnerabilities affect a wide range of Android smartphones from Samsung, Vivo, and Google, as well as wearables using the Exynos W920 chipset and vehicles equipped with the Exynos Auto T5123 chipset. If you have a device that uses any of these Exynos chipsets, be sure to keep an eye out for updates from your manufacturer and install them as soon as possible. In the meantime, you can protect yourself by avoiding downloading apps from unknown sources and being careful about what links you click on.