CVE-2026-43817: An app may be able to cause unexpected system termination in Apple iOS and iPadOS
CVE-2026-43817 is a vulnerability in Apple iOS and iPadOS where an out-of-bounds read could allow an app to cause unexpected system termination. This issue affects multiple Apple operating systems and has been addressed with improved bounds checking. The vulnerability has a medium severity rating and a CVSS score of 5.5. It does not impact confidentiality or integrity but can cause availability disruption. The issue is fixed in iOS 26.6 and iPadOS 26.6, among other Apple 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, impacting system availability. The flaw is classified under CWE-125 (Out-of-bounds Read). Apple fixed this issue by improving bounds checking in iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The CVSS 3.1 vector indicates local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no impact on confidentiality or integrity, and high impact on availability.
Potential Impact
An attacker with local access and no privileges could exploit this vulnerability by convincing a user to interact with a malicious app, causing unexpected system termination and thus disrupting availability. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
This vulnerability is fixed in iOS 26.6 and iPadOS 26.6, as well as other Apple OS versions listed. Users and administrators should apply these official updates to remediate the issue. No additional mitigation is required beyond applying the vendor's official fix.
CVE-2026-43817: An app may be able to cause unexpected system termination in Apple iOS and iPadOS
Description
CVE-2026-43817 is a vulnerability in Apple iOS and iPadOS where an out-of-bounds read could allow an app to cause unexpected system termination. This issue affects multiple Apple operating systems and has been addressed with improved bounds checking. The vulnerability has a medium severity rating and a CVSS score of 5.5. It does not impact confidentiality or integrity but can cause availability disruption. The issue is fixed in iOS 26.6 and iPadOS 26.6, among other Apple OS versions.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
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, impacting system availability. The flaw is classified under CWE-125 (Out-of-bounds Read). Apple fixed this issue by improving bounds checking in iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The CVSS 3.1 vector indicates local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no impact on confidentiality or integrity, and high impact on availability.
Potential Impact
An attacker with local access and no privileges could exploit this vulnerability by convincing a user to interact with a malicious app, causing unexpected system termination and thus disrupting availability. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
This vulnerability is fixed in iOS 26.6 and iPadOS 26.6, as well as other Apple OS versions listed. Users and administrators should apply these official updates to remediate the issue. No additional mitigation is required beyond applying the vendor's official fix.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-46ww-xphq-j8cv
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43817"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6940389c2644c7f866b524
Added to database: 07/28/2026, 23:50:16 UTC
Last enriched: 07/30/2026, 11:35:03 UTC
Last updated: 09/11/2026, 09:57:36 UTC
Views: 110
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