CVE-2026-43780
7.8Apple · iOS, iPadOS, macOS, tvOS, visionOS, watchOS
An integer overflow vulnerability in Apple software allows for potential application termination or arbitrary code execution when processing a maliciously crafted texture.
Executive summary
A critical integer overflow vulnerability across the Apple ecosystem, including iOS and macOS, allows attackers to trigger application termination or potentially gain unauthorized system control through malicious textures.
Vulnerability
This vulnerability is an integer overflow flaw triggered by improper input validation during the processing of textures. An attacker can exploit this condition by tricking a user into opening a maliciously crafted file, which requires no prior authentication.
Business impact
The exploitation of this vulnerability poses a significant risk to organizational endpoints, as it can lead to application crashes, system instability, or full compromise of the affected device. With a CVSS score of 7.8, this flaw is categorized as high severity because it allows for high confidentiality, integrity, and availability impact if successfully triggered. Such compromises could lead to unauthorized access to sensitive corporate data or a complete loss of device control.
Remediation
Immediate Action: Update all affected Apple devices to the versions specified in the vendor advisory (e.g., iOS 26.6, macOS 15.7.8) immediately to resolve the integer overflow.
Proactive Monitoring: Review system and application logs for unexpected crashes or error patterns that correlate with the processing of external media or image files.
Compensating Controls: Ensure that endpoint protection software is active and configured to scan incoming files, and advise users to exercise caution when opening textures or images from untrusted sources.
Exploitation status
Public Exploit Available: Unknown
Analyst recommendation
Given the breadth of affected Apple platforms and the potential for severe system impact, organizations must treat this update as a high-priority task. Administrators should verify the patch level of all managed devices and enforce updates to the latest versions to mitigate the risk of exploitation. Failure to patch leaves devices vulnerable to malicious textures that could result in application failure or deeper system compromise.