A buffer overflow flaw was identified in various Apple operating systems, affecting how memory bounds are checked in critical system components. The vulnerability could cause an application to trigger an unexpected system termination, potentially allowing an attacker to force the operating system to crash. While the description does not explicitly state code execution, the nature of the overflow suggests that an attacker could overflow a buffer, leading to loss of control over execution flow and system stability.

Apple iOS and iPadOS versions earlier than 18.7.9 and 26.5, macOS Sequoia, Sonoma, and Tahoe releases earlier than 15.7.7, 14.8.7, and 26.5 respectively, as well as older releases of tvOS, visionOS, and watchOS are affected. The affected ranges are detailed by Apple in the advisory and have been addressed in the listed updates.

The vulnerability does not appear in the CISA KEV database and no EPSS score is available, indicating no publicly documented exploits yet. However, a buffer overflow that can crash the system is a high‑severity potential, and an attacker could leverage it by delivering a malicious app or input that overflows the vulnerable buffer. The risk primarily translates to denial of service and could be a stepping stone to more severe outcomes if additional local privileges exist. The lack of exploitation data suggests that the threat profile is moderate until an exploit emerges.