CVE-2026-43731: Processing maliciously crafted web content may lead to memory corruption in Apple Safari
A use-after-free issue was addressed with improved memory management. 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 use-after-free condition in Apple Safari's handling of web content, which may result in memory corruption. Apple fixed the issue by improving memory management in Safari version 26.5.2 and corresponding OS versions. No CVSS score is provided, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation of this vulnerability could lead to memory corruption, potentially allowing an attacker to cause a crash or execute arbitrary code within the context of the Safari browser. However, no known exploits in the wild have been reported.
Mitigation Recommendations
Update Safari to version 26.5.2 or later, and update iOS, iPadOS, or macOS Tahoe to version 26.5.2 or later to apply the official fix provided by Apple.
CVE-2026-43731: Processing maliciously crafted web content may lead to memory corruption in Apple Safari
Description
A use-after-free issue was addressed with improved memory management. 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 use-after-free condition in Apple Safari's handling of web content, which may result in memory corruption. Apple fixed the issue by improving memory management in Safari version 26.5.2 and corresponding OS versions. No CVSS score is provided, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation of this vulnerability could lead to memory corruption, potentially allowing an attacker to cause a crash or execute arbitrary code within the context of the Safari browser. However, no known exploits in the wild have been reported.
Mitigation Recommendations
Update Safari to version 26.5.2 or later, and update iOS, iPadOS, or macOS Tahoe to version 26.5.2 or later to apply the official fix provided by Apple.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.646Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d427e9c7971972d14e
Added to database: 06/29/2026, 20:21:40 UTC
Last enriched: 06/29/2026, 20:37:14 UTC
Last updated: 06/29/2026, 22:06:43 UTC
Views: 3
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