CVE-2026-43655: An app may be able to cause unexpected system termination or read kernel memory in Apple iOS and iPadOS
CVE-2026-43655 is a vulnerability in Apple iOS and iPadOS where an out-of-bounds read could allow an app to cause unexpected system termination or read kernel memory. Apple addressed this issue with improved bounds checking in iOS 26. 5 and iPadOS 26. 5. The vulnerability also affects macOS Tahoe, tvOS, and watchOS versions 26. 5. No known exploits are reported in the wild. Patch status is confirmed as fixed in the specified OS versions.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read in Apple iOS and iPadOS that could be triggered by a malicious app to cause unexpected system termination or to read kernel memory. The issue was resolved by Apple through improved bounds checking and is fixed in iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, and watchOS 26.5.
Potential Impact
An attacker controlling a malicious app could exploit this vulnerability to cause the system to terminate unexpectedly or to read sensitive kernel memory, potentially leading to information disclosure or denial of service conditions. No evidence of exploitation in the wild has been reported.
Mitigation Recommendations
Apple has released official fixes in iOS 26.5 and iPadOS 26.5 (as well as other OS versions). Users and administrators should apply these updates to remediate the vulnerability. Patch status is confirmed by the vendor advisory.
CVE-2026-43655: An app may be able to cause unexpected system termination or read kernel memory in Apple iOS and iPadOS
Description
CVE-2026-43655 is a vulnerability in Apple iOS and iPadOS where an out-of-bounds read could allow an app to cause unexpected system termination or read kernel memory. Apple addressed this issue with improved bounds checking in iOS 26. 5 and iPadOS 26. 5. The vulnerability also affects macOS Tahoe, tvOS, and watchOS versions 26. 5. No known exploits are reported in the wild. Patch status is confirmed as fixed in the specified OS versions.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read in Apple iOS and iPadOS that could be triggered by a malicious app to cause unexpected system termination or to read kernel memory. The issue was resolved by Apple through improved bounds checking and is fixed in iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, and watchOS 26.5.
Potential Impact
An attacker controlling a malicious app could exploit this vulnerability to cause the system to terminate unexpectedly or to read sensitive kernel memory, potentially leading to information disclosure or denial of service conditions. No evidence of exploitation in the wild has been reported.
Mitigation Recommendations
Apple has released official fixes in iOS 26.5 and iPadOS 26.5 (as well as other OS versions). Users and administrators should apply these updates to remediate the vulnerability. Patch status is confirmed by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.639Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a028769cbff5d86108b6df3
Added to database: 5/12/2026, 1:50:33 AM
Last enriched: 5/12/2026, 2:06:41 AM
Last updated: 5/12/2026, 3:50:20 AM
Views: 2
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