CVE-2026-43717: Processing maliciously crafted web content may lead to an unexpected Safari 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. Processing maliciously crafted web content may lead to an unexpected Safari crash.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Apple Safari that can lead to an unexpected crash when handling specially crafted web content. The underlying cause was improper memory management. Apple fixed the issue by improving memory handling in Safari and related operating systems, releasing patches in version 26.5.2 for Safari, iOS, iPadOS, and macOS Tahoe.
Potential Impact
An attacker could cause Safari to crash unexpectedly by delivering malicious web content. This results in denial of service for the user. There is no information indicating further impact such as code execution or data leakage. No known exploits have been reported in the wild.
Mitigation Recommendations
A fix is available in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. Users and administrators should update to these versions to remediate the vulnerability.
CVE-2026-43717: Processing maliciously crafted web content may lead to an unexpected Safari 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. Processing maliciously crafted web content may lead to an unexpected Safari 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 lead to an unexpected crash when handling specially crafted web content. The underlying cause was improper memory management. Apple fixed the issue by improving memory handling in Safari and related operating systems, releasing patches in version 26.5.2 for Safari, iOS, iPadOS, and macOS Tahoe.
Potential Impact
An attacker could cause Safari to crash unexpectedly by delivering malicious web content. This results in denial of service for the user. There is no information indicating further impact such as code execution or data leakage. No known exploits have been reported in the wild.
Mitigation Recommendations
A fix is available in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. Users and administrators should update to these versions to remediate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.644Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d327e9c7971972d06f
Added to database: 06/29/2026, 20:21:39 UTC
Last enriched: 06/29/2026, 20:37:52 UTC
Last updated: 06/29/2026, 22:06:43 UTC
Views: 2
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