CVE-2026-112619 in iPadOS
Summary
by MITRE • 10/26/2026
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.
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Analysis
by VulDB Data Team • 10/26/2026
The vulnerability described involves an out-of-bounds write condition within the system components responsible for processing calendar invitations on Apple operating systems including iOS, iPadOS, macOS, visionOS, and watchOS. This type of flaw typically arises when a software application writes data beyond the boundaries of allocated memory buffers without adequate validation or bounds checking mechanisms in place. In this specific instance, the issue was triggered by parsing maliciously crafted calendar invitation files which likely contained specially formatted fields designed to exploit weaknesses in how the system handles input data structures related to scheduling events.
From a technical perspective, out-of-bounds writes are among the most dangerous memory corruption vulnerabilities because they allow an attacker to overwrite adjacent memory locations with arbitrary values. This can lead to unpredictable behavior including application crashes, denial of service conditions where legitimate users cannot access their schedules or device functionality is impaired, and potentially more severe consequences such as remote code execution if the overwritten memory controls critical program flow indicators like return addresses or function pointers. The root cause lies in insufficient validation of input data length against buffer sizes during the parsing phase of calendar invitation processing which suggests that prior to this fix there was a lack of rigorous boundary checks ensuring that all incoming data fits within expected limits before being written into internal structures.
The operational impact of such vulnerabilities extends beyond simple instability since memory corruption issues can be leveraged by attackers to gain unauthorized access to sensitive information stored on the device or even execute arbitrary code with elevated privileges depending on the context in which the vulnerable component operates Calendar applications often run with significant system permissions making them attractive targets for exploitation particularly when processing content from untrusted sources such as emails received via messaging services or web-based calendar integrations.
To mitigate these risks Apple has implemented improved bounds checking logic within the affected components ensuring that any attempt to write data beyond allocated memory regions is detected and prevented before it can cause harm Users are strongly advised to update their devices immediately upon release of iOS 27.2 iPadOS 27.2 macOS Golden Gate 27.2 visionOS 27.2 and watchOS 27.2 as these updates contain the necessary patches addressing this specific memory corruption flaw Additionally organizations should enforce strict policies regarding which calendar sources are trusted within enterprise environments to reduce exposure to potentially malicious invitations while maintaining awareness of emerging threats targeting productivity applications through similar attack vectors aligned with techniques documented under CWE-787 Out-of-Bounds Write and ATT&CK tactics involving exploitation for initial access or privilege escalation depending on the specific implementation details not fully disclosed in public advisories