CVE-2026-43743: An app may be able to cause unexpected system termination in Apple iOS and iPadOS
A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.
AI Analysis
Technical Summary
This vulnerability involves a race condition in Apple iOS and iPadOS that could allow a malicious app to trigger unexpected system termination, impacting system availability. Apple addressed the issue by improving state handling. The fix is included in iOS and iPadOS versions 26.5.2 and later. The CVSS 3.1 base score is 4.7, reflecting a medium severity with local attack vector, high attack complexity, low privileges required, no user interaction, and impact limited to availability.
Potential Impact
An attacker with local access and low privileges could exploit this race condition to cause the system to terminate unexpectedly, resulting in denial of service. There is no impact on confidentiality or integrity of the system or data.
Mitigation Recommendations
Apply the official fix by updating to iOS 26.5.2 or iPadOS 26.5.2 or later versions where the vulnerability is resolved. Patch status is confirmed by the vendor advisory stating the issue is fixed in these versions.
CVE-2026-43743: An app may be able to cause unexpected system termination in Apple iOS and iPadOS
Description
A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.
CVSS v3.1
Score 4.7medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition in Apple iOS and iPadOS that could allow a malicious app to trigger unexpected system termination, impacting system availability. Apple addressed the issue by improving state handling. The fix is included in iOS and iPadOS versions 26.5.2 and later. The CVSS 3.1 base score is 4.7, reflecting a medium severity with local attack vector, high attack complexity, low privileges required, no user interaction, and impact limited to availability.
Potential Impact
An attacker with local access and low privileges could exploit this race condition to cause the system to terminate unexpectedly, resulting in denial of service. There is no impact on confidentiality or integrity of the system or data.
Mitigation Recommendations
Apply the official fix by updating to iOS 26.5.2 or iPadOS 26.5.2 or later versions where the vulnerability is resolved. 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
- 2026-05-01T22:46:21.647Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d427e9c7971972d16c
Added to database: 06/29/2026, 20:21:40 UTC
Last enriched: 07/30/2026, 00:58:03 UTC
Last updated: 08/12/2026, 00:41:12 UTC
Views: 91
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