Reprinted from TidBITS by permission; reuse governed by Creative Commons license BY-NC-ND 3.0. TidBITS has offered years of thoughtful commentary on Apple and Internet topics. For free email subscriptions and access to the entire TidBITS archive, visit http://www.tidbits.com/ iOS 12.5.6 Fixes Serious WebKit Vulnerability for Older Devices Josh Centers Apple has released [1]iOS 12.5.6, a small but important security update for older devices to fix a serious WebKit vulnerability also addressed by iOS 15.6.1 (see '[2]iOS 15.6.1, iPadOS 15.6.1, and macOS 12.5.1 Monterey Address Serious Security Vulnerabilities,' 17 August 2022). You can install the update from Settings > General > Software Update. Because this vulnerability has been exploited in the wild, we recommend that you update immediately if you're still using any of the following devices: * iPhone 5s * iPhone 6 * iPhone 6 Plus * iPad Air (1st generation) * iPad mini 2iPad mini 3iPod touch (6th generation) Apple noted that iOS 12 was not affected by the kernel vulnerability fixed in iOS 15.6.1. References 1. https://support.apple.com/en-us/HT213428 2. https://tidbits.com/2022/08/17/ios-15-6-1-ipados-15-6-1-and-macos-12-5-1-monterey-address-serious-security-vulnerabilities/ .