CVE-2026-43705: Processing maliciously crafted web content may lead to memory corruption in Apple Safari
A type confusion issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to memory corruption.
AI Analysis
Technical Summary
This vulnerability involves a type confusion flaw in Apple Safari that can be triggered by processing specially crafted web content, potentially causing memory corruption. The flaw was mitigated by improved type checks and fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The CVSS 3.1 score is 8.8 (high), indicating network attack vector, low attack complexity, no privileges required, user interaction needed, and high impact on confidentiality, integrity, and availability. No public exploits are known.
Potential Impact
Successful exploitation may lead to memory corruption, which can result in arbitrary code execution or application crashes, impacting confidentiality, integrity, and availability of the affected system. The vulnerability requires user interaction and can be triggered remotely via network by visiting malicious web content.
Mitigation Recommendations
A fix is available in Safari 26.5.2 and the corresponding OS updates (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). Users and administrators should update to these versions to remediate the vulnerability. Patch status is confirmed by the vendor advisory stating the issue is fixed in these versions.
CVE-2026-43705: Processing maliciously crafted web content may lead to memory corruption in Apple Safari
Description
A type confusion issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to memory corruption.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a type confusion flaw in Apple Safari that can be triggered by processing specially crafted web content, potentially causing memory corruption. The flaw was mitigated by improved type checks and fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The CVSS 3.1 score is 8.8 (high), indicating network attack vector, low attack complexity, no privileges required, user interaction needed, and high impact on confidentiality, integrity, and availability. No public exploits are known.
Potential Impact
Successful exploitation may lead to memory corruption, which can result in arbitrary code execution or application crashes, impacting confidentiality, integrity, and availability of the affected system. The vulnerability requires user interaction and can be triggered remotely via network by visiting malicious web content.
Mitigation Recommendations
A fix is available in Safari 26.5.2 and the corresponding OS updates (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). Users and administrators should update to these versions to remediate the vulnerability. Patch status is confirmed by the vendor advisory stating the issue is fixed in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.643Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d227e9c7971972cef9
Added to database: 06/29/2026, 20:21:38 UTC
Last enriched: 07/30/2026, 00:54:56 UTC
Last updated: 08/11/2026, 14:51:12 UTC
Views: 72
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