CVE-2026-64730 in iOS
Summary
by MITRE • 07/28/2026
The issue was addressed with improved UI. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Visiting a website that frames malicious content may lead to UI spoofing.
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Analysis
by VulDB Data Team • 07/28/2026
This vulnerability represents a user interface spoofing issue that emerged in Apple's Safari browser and related operating systems. The flaw stems from inadequate validation mechanisms within the browser's rendering engine when processing framed content from untrusted websites. When users navigate to malicious sites that employ frame-based attacks, the UI elements can be manipulated to deceive users into believing they are interacting with legitimate interfaces while actually engaging with fraudulent content. This type of vulnerability falls under the broader category of cross-site scripting and user interface manipulation attacks that have been documented in various security frameworks including CWE-611 for insufficient access control and CWE-74 for injection flaws in UI components.
The technical implementation of this vulnerability occurs when a malicious website constructs carefully crafted HTML frames that overlay or replace legitimate browser UI elements. The issue manifests specifically in how Safari handles frame boundaries and content rendering, allowing attackers to potentially display misleading interface elements that appear genuine to users. This could enable attackers to trick users into entering sensitive information or performing unintended actions by making them believe they are interacting with trusted applications or websites. The vulnerability demonstrates a fundamental breakdown in the browser's security model regarding frame isolation and user interface integrity.
The operational impact of this vulnerability extends beyond simple deception as it can enable more sophisticated attack vectors including credential theft, unauthorized transaction processing, and data exfiltration. Users may inadvertently provide personal information, financial details, or system access credentials when misled by the fraudulent UI elements. Security researchers have identified this as a potential pathway for social engineering attacks that leverage technical vulnerabilities to bypass user awareness mechanisms. The risk is particularly elevated in environments where users frequently interact with web-based applications and services that require sensitive data entry.
Apple addressed this vulnerability through comprehensive UI validation improvements across all supported platforms including Safari 26.6, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The mitigation strategy involves enhanced frame boundary checking, stricter content validation for UI elements, and improved isolation mechanisms between different content sources. Organizations should ensure immediate deployment of these updates across all affected systems while maintaining user awareness training about potential UI spoofing attacks. The fix aligns with industry best practices for browser security as outlined in the OWASP Top Ten and represents a critical defense against user interface manipulation attacks that have been increasingly prevalent in modern web-based threats.