A security bug in Google's V8 JavaScript engine is indirectly affecting around one in 16 Android devices, impacting smartphone models from all major vendors, such as LG, Samsung, Motorola, and Huawei.
The issue at play here has been discovered and fixed in the summer of 2015 and affected the Google V8 JavaScript engine, between versions 3.20 and 4.2.
Despite this bug being public for more than a year, only in August 2016 did Chinese security researchers discover that the V8 issue also affected a whole range of Android-related products where the older V8 engine versions had been deployed.