Research · Aug 20, 2025 · ZeroDay Catalog
Critical Out-of-Bounds Write Vulnerability in Apple Operating Systems
Apple has addressed a significant out-of-bounds write vulnerability affecting multiple operating systems, which may have been exploited in targeted attacks.
What changed
Apple has resolved an out-of-bounds write vulnerability that could lead to memory corruption when processing malicious image files. This issue has been fixed in several recent updates across its operating systems.
The vulnerability was addressed with enhanced bounds checking, significantly improving the security posture of affected systems.
Who is affected
Users of Apple’s iOS, iPadOS, and macOS are at risk, particularly those who have not yet updated to the latest versions.
The vulnerability impacts a wide range of devices, including iPhones, iPads, and Mac computers.
- Apple iOS versions 15.8.5, 16.7.12, and 18.6.2
- Apple iPadOS versions 15.8.5, 16.7.12, and 17.7.10
- macOS Sequoia 15.6.1, Sonoma 14.7.8, and Ventura 13.7.8
- Specific targeted individuals may have been affected by sophisticated attacks leveraging this vulnerability.
What to do
It is crucial for users and organizations to promptly update their devices to the latest versions of iOS, iPadOS, and macOS to mitigate the risk associated with this vulnerability.
Regularly monitoring security advisories from Apple and implementing best practices for device security can further reduce exposure.
- Update to the latest iOS, iPadOS, and macOS versions immediately.
- Monitor for any unusual activity that may indicate exploitation.
- Educate users about the risks of processing unknown or suspicious files.