CVE-2026-43742: Processing maliciously crafted web content may lead to an unexpected process crash 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, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Apple Safari that can be triggered by processing specially crafted web content, leading to an unexpected process crash. The issue was resolved by Apple through improved memory management in Safari 26.5.2 and related OS updates (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). The CVSS 3.1 vector indicates the attack can be performed remotely over the network without privileges but requires user interaction. The vulnerability does not impact confidentiality or integrity but affects availability by causing crashes.
Potential Impact
Successful exploitation results in an unexpected process crash of Safari, impacting availability. There is no impact on confidentiality or integrity. The vulnerability requires user interaction and can be triggered remotely via malicious web content. No known active exploits have been reported.
Mitigation Recommendations
A fix is available in Safari version 26.5.2 and 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 affected Safari browsers and operating systems to these versions or later to remediate the vulnerability.
CVE-2026-43742: Processing maliciously crafted web content may lead to an unexpected process crash 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, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in Apple Safari that can be triggered by processing specially crafted web content, leading to an unexpected process crash. The issue was resolved by Apple through improved memory management in Safari 26.5.2 and related OS updates (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). The CVSS 3.1 vector indicates the attack can be performed remotely over the network without privileges but requires user interaction. The vulnerability does not impact confidentiality or integrity but affects availability by causing crashes.
Potential Impact
Successful exploitation results in an unexpected process crash of Safari, impacting availability. There is no impact on confidentiality or integrity. The vulnerability requires user interaction and can be triggered remotely via malicious web content. No known active exploits have been reported.
Mitigation Recommendations
A fix is available in Safari version 26.5.2 and 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 affected Safari browsers and operating systems to these versions or later to remediate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.647Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d427e9c7971972d167
Added to database: 06/29/2026, 20:21:40 UTC
Last enriched: 07/30/2026, 00:57:53 UTC
Last updated: 08/12/2026, 12:41:09 UTC
Views: 51
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