During the weekend, Apple attributed reports of overheating issues with iPhone 15s to a combination of factors, including specific apps such as Instagram and Uber, background processing after data transfers, and unspecified bugs in iOS 17.
Yesterday, the company rolled out a new software update with release notes indicating that iOS 17.0.3 aims to resolve a problem where iPhones were running warmer than expected.
In the update, Apple also provided details about security fixes included in this patch. These fixes address two issues that affect both iOS and iPad OS, as reported by 9to5Mac. The first is a kernel exploit that could be utilized by an attacker with local access to the device, which Apple noted as having the potential for exploitation in versions of iOS prior to iOS 16.6.
Additionally, the update addresses a libvpx bug, previously warned about by CISA, which could enable remote takeover of a device. This particular bug has also been recently patched in applications like Chrome and Firefox.

Addressing iPhone 15 Overheating Concerns and Software Updates
To obtain the latest update for your device, you can simply check for it, and it will appear as a 423.2MB download directly from Apple.
There had been some speculation regarding potential hardware-related issues, possibly stemming from the iPhone 15’s more powerful processor or the use of titanium components, contributing to the occurrence of overheating iPhones.
However, Apple’s statements to Forbes and other sources primarily attribute the problem to software-related factors, in addition to mentioning the potential for heating when using USB-C chargers.
After you have successfully installed the update, please share with us whether your iPhone 15’s temperature issue has improved or if it continues to run hot.
It’s worth noting that Apple had previously released a post-iPhone 15 launch patch to address data transfer problems experienced by some new owners. Furthermore, the company is currently in the beta testing phase for a more substantial iOS 17.1 update.
Conclusion
In response to reports of iPhone 15 overheating, Apple has addressed the issue with the iOS 17.0.3 update, primarily attributing it to software-related factors like specific apps and background processing. Additionally, this update includes vital security fixes for iOS and iPadOS. Apple continues to refine its software, with iOS 17.1 in beta testing.