CVE-2026-43714 in iOS
Summary
by MITRE • 07/28/2026
The issue was addressed with improved input sanitization. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. A malicious app may be able to access protected user data.
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Analysis
by VulDB Data Team • 07/28/2026
This vulnerability represents a critical security flaw in Apple's operating systems that was addressed through enhanced input sanitization measures. The issue affected multiple platform versions including iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, visionOS 26.6, and watchOS 26.6. The vulnerability stemmed from inadequate validation of user inputs across various system components, creating potential attack vectors that could be exploited by malicious applications to gain unauthorized access to protected user data.
The technical implementation of this flaw likely involved insufficient sanitization of input parameters within system APIs or application interfaces, allowing malicious actors to craft specially formatted inputs that could bypass normal security controls. This type of vulnerability aligns with common CWE categories including CWE-20 for Improper Input Validation and CWE-79 for Cross-Site Scripting, where inadequate sanitization creates opportunities for unauthorized data access. The attack surface was particularly concerning given that it affected core operating system components that handle sensitive user information and system resources.
The operational impact of this vulnerability extends beyond simple data exposure to encompass potential privilege escalation scenarios and broader system compromise possibilities. Malicious applications could exploit the input sanitization gaps to access protected user data through various system pathways, potentially including personal documents, communications, authentication credentials, or other sensitive information stored within the operating system. This represents a significant threat vector that could enable persistent surveillance or data theft operations against affected users.
Security mitigations for this vulnerability involved implementing enhanced input validation mechanisms and sanitization routines across affected system components. The fixes included strengthening parameter validation checks, improving data filtering processes, and ensuring proper input handling throughout the system architecture. Organizations should prioritize immediate deployment of these updates across all affected platforms to prevent exploitation attempts. System administrators should also implement monitoring solutions to detect potential exploitation attempts and maintain comprehensive audit trails of system access patterns.
The remediation approach demonstrates Apple's ongoing efforts to address security gaps through proactive patch management and enhanced validation protocols. This vulnerability highlights the importance of continuous security assessment and input validation in preventing unauthorized data access scenarios. The fix aligns with industry best practices for secure coding and input handling, emphasizing the need for robust sanitization routines that can prevent malicious inputs from compromising system integrity. Organizations should also consider implementing additional security controls such as application whitelisting and enhanced user behavior monitoring to provide defense-in-depth protection against similar vulnerabilities.
This vulnerability serves as a reminder of the critical importance of input validation in secure system design, particularly when dealing with user-facing applications and system interfaces that process potentially malicious inputs. The implementation of improved sanitization measures represents a fundamental security enhancement that addresses core architectural weaknesses in the affected operating system versions. Continuous security assessment and prompt patch deployment remain essential practices for maintaining system integrity and protecting against evolving threat landscapes.