Lenovo releases August security patch for Moto G5 Plus units being used in India. The update roll out via OTA carrying build number NPN25.137-67-5 that installs August security patch on Moto G5 Plus. The update weighs around 53.9MB, that not only install August security patch but also under the hood improvements in firmware to improve stability. The update improves some audio issues in the phone while the OS still remains on Android 7.0 Nougat. The OTA has landed already just go to Settings > About device > System updates.
It is always recommend to keep your device updated regarding necessary security updates. Android security updates mostly deal with the deadly vulnerabilities according Android’s security bulletin “One of them is the issue with critical security vulnerability in media framework that could enable a remote attacker using a specially crafted file to 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 mitigation is turned off for development purposes or if successfully bypassed”.