An out-of-bounds write issue was addressed with improved bounds checking.

Summary

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2, watchOS 27.2. Processing a maliciously crafted calendar invitation may lead to memory corruption.

Remediation

1. Inventory every Apple iOS and iPadOS deployment, including staging.
2. Upgrade Apple iOS and iPadOS to 27.2.
3. Confirm the running version after the upgrade.

References

• Referencehttps://support.apple.com/en-us/149230
• Referencehttps://support.apple.com/en-us/149521
• Referencehttps://support.apple.com/en-us/149525
• Referencehttps://support.apple.com/en-us/149526