It should be noted that due to the configuration cache problem of Apple’s regional node servers, there may be a slight delay in the detection of upgrade updates in some places, usually within half an hour, not too long.

In the official update log, Apple only stated that it has enhanced security features and has not introduced any new functions/features. Apple says the iOS/iPadOS 15.7.5 update provides “important security fixes” and recommends that all users upgrade as soon as possible.

The list of devices applicable to the iOS / iPadOS 15.7.5 update is as follows:

 iPhone 6s series (all models)

 iPhone 7 series (all models)

 iPhone SE (1st generation)

 iPad Air 2

 iPad mini (4th generation)

 iPod touch (7th generation)

Apple officially stated that iOS / iPadOS 15.7.5 fixes two vulnerabilities, and there is already evidence that they have been actively exploited by hackers.

IOSurfaceAccelerator:

 Impact: An application could execute arbitrary code with kernel privileges.

 Description: An out-of-bounds writing issue has been fixed through improved input validation.

WebKit:

 Impact: A user visits a malicious website made by a hacker and can execute arbitrary code after infection.

 Description: Fixed use after free issue with improved memory management.

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