CVE-2026-84523: An app may be able to cause unexpected system termination or write kernel memory in Apple iOS and iPadOS
CVE-2026-84523 is an out-of-bounds write vulnerability in Apple iOS and iPadOS that could allow an app to cause unexpected system termination or write to kernel memory. The issue was addressed by improved bounds checking and fixed in iOS 26.7 and later, iPadOS 26.7 and later, and other Apple operating systems. Exploitation could lead to system instability or potential kernel memory corruption.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds write condition in Apple iOS and iPadOS, which could be exploited by a malicious app to cause unexpected system termination or to write kernel memory. Apple fixed the issue by improving bounds checking in iOS 26.7, iPadOS 26.7, and corresponding versions of macOS, tvOS, visionOS, and watchOS. The vulnerability affects versions prior to these fixed releases.
Potential Impact
An attacker with the ability to run a malicious app on affected Apple devices could cause the system to crash unexpectedly or potentially corrupt kernel memory, which may lead to further system compromise or instability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 26.7, iPadOS 26.7, and corresponding versions of other Apple operating systems. Users and administrators should update to these fixed versions or later to remediate the issue.
CVE-2026-84523: An app may be able to cause unexpected system termination or write kernel memory in Apple iOS and iPadOS
Description
CVE-2026-84523 is an out-of-bounds write vulnerability in Apple iOS and iPadOS that could allow an app to cause unexpected system termination or write to kernel memory. The issue was addressed by improved bounds checking and fixed in iOS 26.7 and later, iPadOS 26.7 and later, and other Apple operating systems. Exploitation could lead to system instability or potential kernel memory corruption.
Affected software
Apple
iOS and iPadOS
Apple
macOS
Apple
tvOS
Apple
visionOS
Apple
watchOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds write condition in Apple iOS and iPadOS, which could be exploited by a malicious app to cause unexpected system termination or to write kernel memory. Apple fixed the issue by improving bounds checking in iOS 26.7, iPadOS 26.7, and corresponding versions of macOS, tvOS, visionOS, and watchOS. The vulnerability affects versions prior to these fixed releases.
Potential Impact
An attacker with the ability to run a malicious app on affected Apple devices could cause the system to crash unexpectedly or potentially corrupt kernel memory, which may lead to further system compromise or instability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 26.7, iPadOS 26.7, and corresponding versions of other Apple operating systems. Users and administrators should update to these fixed versions or later to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-09-01T21:13:17.749Z
- State
- PUBLISHED
Threat ID: 6aa8610455bf5e2cf59d2847
Added to database: 09/14/2026, 21:03:00 UTC
Last enriched: 09/14/2026, 22:30:56 UTC
Last updated: 09/15/2026, 07:01:22 UTC
Views: 3
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