CVE-2026-86870: Processing a maliciously crafted file may lead to unexpected app termination in Apple iOS and iPadOS
A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to unexpected app termination.
AI Analysis
Technical Summary
CVE-2026-86870 is a heap buffer overflow vulnerability in Apple iOS and iPadOS that occurs when processing a maliciously crafted file. The flaw could lead to unexpected app termination due to improper bounds checking. Apple fixed this issue by improving bounds checking in iOS 26.7, iPadOS 26.7, iOS 27, iPadOS 27, macOS Golden Gate 27, visionOS 27, and watchOS 27.
Potential Impact
The vulnerability may cause affected applications to terminate unexpectedly when processing specially crafted files. There is no indication of code execution or data corruption beyond app termination. No known exploits are reported in the wild.
Mitigation Recommendations
Apply the official fixes by upgrading to iOS 26.7 or later, iPadOS 26.7 or later, or the corresponding fixed versions of macOS Golden Gate, visionOS, and watchOS. These versions include improved bounds checking that resolves the heap buffer overflow. No additional mitigation is required once updated.
CVE-2026-86870: Processing a maliciously crafted file may lead to unexpected app termination in Apple iOS and iPadOS
Description
A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to unexpected app termination.
Affected software
Apple
iOS and iPadOS
Apple
macOS
Apple
visionOS
Apple
watchOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86870 is a heap buffer overflow vulnerability in Apple iOS and iPadOS that occurs when processing a maliciously crafted file. The flaw could lead to unexpected app termination due to improper bounds checking. Apple fixed this issue by improving bounds checking in iOS 26.7, iPadOS 26.7, iOS 27, iPadOS 27, macOS Golden Gate 27, visionOS 27, and watchOS 27.
Potential Impact
The vulnerability may cause affected applications to terminate unexpectedly when processing specially crafted files. There is no indication of code execution or data corruption beyond app termination. No known exploits are reported in the wild.
Mitigation Recommendations
Apply the official fixes by upgrading to iOS 26.7 or later, iPadOS 26.7 or later, or the corresponding fixed versions of macOS Golden Gate, visionOS, and watchOS. These versions include improved bounds checking that resolves the heap buffer overflow. No additional mitigation is required once updated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-09-08T16:43:41.870Z
- State
- PUBLISHED
Threat ID: 6aa8611455bf5e2cf59d2f70
Added to database: 09/14/2026, 21:03:16 UTC
Last enriched: 09/14/2026, 21:33:01 UTC
Last updated: 09/15/2026, 04:01:22 UTC
Views: 7
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