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. Processing maliciously crafted web content may lead to memory corruption.
AI Analysis
Technical Summary
This vulnerability involves a type confusion flaw in Apple Safari's web content processing, which may result in memory corruption. Apple fixed the issue by implementing improved validation checks. The fix is included in Safari 26.5.2 and corresponding OS updates (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2). No CVSS score is provided, and no public exploits are known at this time.
Potential Impact
Successful exploitation of this vulnerability could lead to memory corruption, which may cause unexpected behavior or potentially enable further attacks such as arbitrary code execution. However, no known exploits in the wild have been reported.
Mitigation Recommendations
Apply the official fixes by updating Safari to version 26.5.2 and the corresponding iOS, iPadOS, and macOS versions (26.5.2). These updates address the type confusion issue with improved checks, mitigating the risk of memory corruption.
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. 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's web content processing, which may result in memory corruption. Apple fixed the issue by implementing improved validation checks. The fix is included in Safari 26.5.2 and corresponding OS updates (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2). No CVSS score is provided, and no public exploits are known at this time.
Potential Impact
Successful exploitation of this vulnerability could lead to memory corruption, which may cause unexpected behavior or potentially enable further attacks such as arbitrary code execution. However, no known exploits in the wild have been reported.
Mitigation Recommendations
Apply the official fixes by updating Safari to version 26.5.2 and the corresponding iOS, iPadOS, and macOS versions (26.5.2). These updates address the type confusion issue with improved checks, mitigating the risk of memory corruption.
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: 06/29/2026, 20:51:41 UTC
Last updated: 06/29/2026, 22:06:56 UTC
Views: 3
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