CVE-2026-28902 in iOS
Summary
by MITRE • 05/12/2026
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.
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Analysis
by VulDB Data Team • 07/24/2026
This vulnerability represents a memory handling issue that was resolved through enhanced memory management protocols in Apple's Safari browser and related operating systems. The flaw specifically manifested when processing maliciously crafted web content, creating potential instability in the affected applications and systems. The security patch implemented in versions 26.5 for Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS addressed the underlying memory handling mechanisms that previously allowed for unexpected process crashes.
The technical nature of this vulnerability aligns with common software security weaknesses related to improper memory management practices that can lead to buffer overflows, use-after-free conditions, or other memory corruption scenarios. These types of issues typically arise when applications fail to properly validate input data or manage allocated memory resources during content processing operations. The vulnerability could be exploited through web content that contains specially crafted elements designed to trigger memory handling failures in the browser's rendering engine.
From an operational perspective, this vulnerability presented a significant risk to users browsing the web, particularly when encountering malicious websites or web applications that contained crafted content specifically designed to exploit the memory handling flaw. The unexpected process crash could potentially lead to denial of service conditions or, in more severe cases, provide attackers with opportunities to execute arbitrary code or escalate privileges within the affected system environment.
The mitigation strategy implemented by Apple focused on improving memory handling protocols rather than simply patching the specific vulnerability. This approach addresses the root cause by strengthening the underlying memory management systems that govern how Safari and related applications process web content. The fix demonstrates a proactive security approach that prevents similar issues from occurring in the future by enhancing the overall robustness of the memory management subsystems.
This vulnerability type corresponds to common weakness enumerations such as CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write operations. These classifications reflect the fundamental nature of memory handling flaws that can result in process instability or security breaches when applications fail to properly validate memory access patterns during content processing operations.
The remediation approach taken by Apple aligns with industry best practices for addressing memory safety vulnerabilities, following the principles outlined in various cybersecurity frameworks and threat modeling methodologies. The comprehensive patch coverage across multiple operating systems demonstrates Apple's commitment to providing consistent security protections across their ecosystem, ensuring that users are protected regardless of which device or platform they utilize for web browsing activities.
From an attacker perspective, this vulnerability would have required crafting specific web content designed to trigger the memory handling flaw in Safari's processing pipeline. The exploitation process would likely involve creating malicious HTML, JavaScript, or multimedia content that when rendered by the browser would cause memory corruption leading to process crashes. This type of attack vector represents a common approach used by threat actors targeting web browsers and their underlying rendering engines.
The security improvements implemented in this patch contribute to the broader cybersecurity landscape by enhancing the overall stability and resilience of web browsing environments across Apple's product ecosystem. These enhancements serve as protective measures against potential exploitation attempts while maintaining the functionality and performance expectations that users rely upon when engaging with web-based applications and content.