CVE-2026-65408: An app may be able to cause unexpected system termination in Apple iOS and iPadOS
CVE-2026-65408 is an integer overflow vulnerability in Apple iOS and iPadOS that could allow an app to cause unexpected system termination. The issue has been addressed with improved input validation and fixed in iOS 26.7, iPadOS 26.7, iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow in Apple iOS and iPadOS that may be exploited by an app to cause unexpected system termination. Apple fixed the issue by improving input validation. The fix is included in iOS and iPadOS versions 26.7 and later, as well as macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
An app exploiting this integer overflow vulnerability could cause the affected system to terminate unexpectedly, potentially leading to denial of service or disruption of normal device operation.
Mitigation Recommendations
Update affected Apple operating systems to iOS 26.7 or later, iPadOS 26.7 or later, macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 to apply the official fix. No further mitigation is required once the system is updated.
CVE-2026-65408: An app may be able to cause unexpected system termination in Apple iOS and iPadOS
Description
CVE-2026-65408 is an integer overflow vulnerability in Apple iOS and iPadOS that could allow an app to cause unexpected system termination. The issue has been addressed with improved input validation and fixed in iOS 26.7, iPadOS 26.7, iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Affected software
Apple
iOS and iPadOS
Apple
macOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow in Apple iOS and iPadOS that may be exploited by an app to cause unexpected system termination. Apple fixed the issue by improving input validation. The fix is included in iOS and iPadOS versions 26.7 and later, as well as macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
An app exploiting this integer overflow vulnerability could cause the affected system to terminate unexpectedly, potentially leading to denial of service or disruption of normal device operation.
Mitigation Recommendations
Update affected Apple operating systems to iOS 26.7 or later, iPadOS 26.7 or later, macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 to apply the official fix. No further mitigation is required once the system is updated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-07-22T00:47:18.621Z
- State
- PUBLISHED
Threat ID: 6aa860ff55bf5e2cf59d2684
Added to database: 09/14/2026, 21:02:55 UTC
Last enriched: 09/14/2026, 22:28:42 UTC
Last updated: 09/15/2026, 03:01:22 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.