CVE-2026-39868: An app may be able to cause unexpected system termination or corrupt kernel memory in Apple iOS and iPadOS
This issue was addressed with improved input validation. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.
AI Analysis
Technical Summary
CVE-2026-39868 is a critical vulnerability affecting Apple iOS and iPadOS where a malicious application may cause unexpected system termination or corrupt kernel memory due to insufficient input validation. The issue is resolved in iOS and iPadOS 26.5.2 and related Apple operating system versions. The vulnerability has a CVSS 3.1 base score of 9.1, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on integrity and availability. No known exploits in the wild have been reported at the time of publication.
Potential Impact
Exploitation of this vulnerability can lead to denial of service through unexpected system termination or potential corruption of kernel memory, which may affect system stability and security. The integrity and availability of the affected devices can be severely impacted.
Mitigation Recommendations
This vulnerability is fixed in iOS and iPadOS version 26.5.2. Users and administrators should update affected devices to iOS/iPadOS 26.5.2 or later to remediate this issue. No additional mitigation steps are indicated beyond applying the official update.
CVE-2026-39868: An app may be able to cause unexpected system termination or corrupt kernel memory in Apple iOS and iPadOS
Description
This issue was addressed with improved input validation. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.
CVSS v3.1
Score 9.1critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-39868 is a critical vulnerability affecting Apple iOS and iPadOS where a malicious application may cause unexpected system termination or corrupt kernel memory due to insufficient input validation. The issue is resolved in iOS and iPadOS 26.5.2 and related Apple operating system versions. The vulnerability has a CVSS 3.1 base score of 9.1, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on integrity and availability. No known exploits in the wild have been reported at the time of publication.
Potential Impact
Exploitation of this vulnerability can lead to denial of service through unexpected system termination or potential corruption of kernel memory, which may affect system stability and security. The integrity and availability of the affected devices can be severely impacted.
Mitigation Recommendations
This vulnerability is fixed in iOS and iPadOS version 26.5.2. Users and administrators should update affected devices to iOS/iPadOS 26.5.2 or later to remediate this issue. No additional mitigation steps are indicated beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-04-07T19:58:20.173Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d027e9c7971972c7a7
Added to database: 06/29/2026, 20:21:36 UTC
Last enriched: 07/30/2026, 00:53:19 UTC
Last updated: 08/13/2026, 12:41:09 UTC
Views: 210
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