Executive brief
The Accelerate Framework is a core component of macOS that processes images and multimedia data. An out-of-bounds write vulnerability could allow an attacker to craft a malicious image that, when processed, causes the system to crash or write data to kernel memory, potentially compromising system stability or enabling privilege escalation.
Technical details
An out-of-bounds write vulnerability exists in the Accelerate Framework component of macOS, triggered when processing a maliciously crafted image file. The vulnerability stems from insufficient bounds checking during image processing operations. Attack preconditions include local access and the ability to provide a crafted image to the framework, which may be accomplished through user interaction (opening an image file) or a malicious application. Successful exploitation results in unexpected process termination or arbitrary writes to kernel memory. The vulnerability is addressed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7 with improved bounds checking.
Affected products
- Apple macOS Golden Gate before 27
- Apple macOS Sequoia before 15.8
- Apple macOS Tahoe before 26.7
Timeline
- 2026-09-14: disclosed
- 2026-09-14: patched: Fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7