CVE-2015-5781: ImageIO in Apple iOS before 8.4.1 and OS X before 10.10.5 does not properly initialize an unspecified data...

Security readout for executives and security teams

CVE-2015-5781 is an Apple ImageIO memory disclosure issue. A crafted PNG image could cause vulnerable iOS or OS X systems to expose sensitive data from process memory. The sources name fixes in iOS 8.4.1 and OS X 10.10.5, with no provided evidence of active exploitation. Exposure is likely limited to legacy Apple devices running iOS before 8.4.1 or OS X before 10.10.5, especially where users or applications open externally supplied PNG images. Treat this as a legacy exposure cleanup item unless vulnerable Apple systems remain in production. Priority rises for unmanaged or unsupported devices that process external images. Mitigation focus: Update iOS devices to 8.4.1 or later where still applicable.; Update OS X systems to 10.10.5 or later where still applicable.; Retire or isolate unsupported Apple systems that cannot receive vendor fixes..

Prepared

Jun 13, 2026, 22:03 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.