Double free in Apple iOS, iPadOS and macOS causes system termination
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-415 and the CVSS impact.
Summary
Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS are affected by a double free (CWE-415) in memory management, where memory is freed twice. A local app with low privileges can cause unexpected system termination without user interaction.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
A double free issue was addressed with improved memory management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | iOS and iPadOS | before 26.7; before 27 | 26.7, 27 | Patch available | CNA |
| Apple | macOS | before 15.8; before 26.7; before 27 | 15.8, 26.7, 27 | Patch available | CNA |
| Apple | tvOS | before 27 | 27 | Patch available | CNA |
| Apple | visionOS | before 27 | 27 | Patch available | CNA |
| Apple | watchOS | before 27 | 27 | Patch available | CNA |
- iOS and iPadOS VendorApple Affected before 26.7; before 27 Fixed in 26.7, 27 Patch available CNA
- macOS VendorApple Affected before 15.8; before 26.7; before 27 Fixed in 15.8, 26.7, 27 Patch available CNA
- tvOS VendorApple Affected before 27 Fixed in 27 Patch available CNA
- visionOS VendorApple Affected before 27 Fixed in 27 Patch available CNA
- watchOS VendorApple Affected before 27 Fixed in 27 Patch available CNA
Remediation
Update iOS and iPadOS to 26.7 or 27, macOS to 15.8, 26.7 or 27, and tvOS, visionOS and watchOS to 27.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA iOS and iPadOS (Apple) Fixed in 26.7, 27
- Fix · CNA macOS (Apple) Fixed in 15.8, 26.7, 27
- Fix · CNA tvOS (Apple) Fixed in 27
- Fix · CNA visionOS (Apple) Fixed in 27
- Fix · CNA watchOS (Apple) Fixed in 27
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 15.8, 26.7, 27
15 records Highest priority Priority MEDIUM 3 MEDIUM, 12 LOW
Other records, highest priority first
- TI-2026-76675 Authentication issue in Apple macOS lets attackers impersonate usersPriority MEDIUM 48
- TI-2026-76672 Improper checks in Apple macOS lead to unexpected software executionPriority MEDIUM 41
- TI-2026-76685 Stack overflow in Apple iOS, macOS and visionOS allows code executionPriority MEDIUM 40
- Release ·
Apple visionOS 27
14 records Highest priority Priority MEDIUM 2 MEDIUM, 12 LOW
Other records, highest priority first
- TI-2026-76687 Type confusion in Apple Safari and iOS allows code executionPriority MEDIUM 40
- TI-2026-76685 Stack overflow in Apple iOS, macOS and visionOS allows code executionPriority MEDIUM 40
- TI-2026-76698 Out-of-bounds read in Apple operating systems can crash the systemPriority LOW 29
Show 3 more groups
- Release ·
Apple watchOS 27
9 records Highest priority Priority LOW 9 LOW
Other records, highest priority first
- TI-2026-76698 Out-of-bounds read in Apple operating systems can crash the systemPriority LOW 29
- TI-2026-76674 Out-of-bounds write in Apple operating systems can crash devicesPriority LOW 29
- TI-2026-76681 Use after free in Apple operating systems when processing media filesPriority LOW 24
- Release ·
Apple iOS and iPadOS 26.7, 27
8 records Highest priority Priority MEDIUM 1 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2026-76685 Stack overflow in Apple iOS, macOS and visionOS allows code executionPriority MEDIUM 40
- TI-2026-76698 Out-of-bounds read in Apple operating systems can crash the systemPriority LOW 29
- TI-2026-76674 Out-of-bounds write in Apple operating systems can crash devicesPriority LOW 29
- Release ·
Apple tvOS 27
8 records Highest priority Priority LOW 8 LOW
Other records, highest priority first
- TI-2026-76698 Out-of-bounds read in Apple operating systems can crash the systemPriority LOW 29
- TI-2026-76674 Out-of-bounds write in Apple operating systems can crash devicesPriority LOW 29
- TI-2026-76681 Use after free in Apple operating systems when processing media filesPriority LOW 24
Timeline
- 2026-10-20 Threatist record created from CVE-2026-86962
- 2026-10-20 CVSS score added · CISA ADP
- 2026-10-20 Weakness changed · CISA ADP
- 2026-10-20 CISA SSVC decision points changed
- 2026-10-20 Alias added: GHSA-hmv8-g358-v6hx
References
Other 8
- https://support.apple.com/en-us/149034
- https://support.apple.com/en-us/149035
- https://support.apple.com/en-us/149036
- https://support.apple.com/en-us/149037
- https://support.apple.com/en-us/149038
- https://support.apple.com/en-us/149041
- https://support.apple.com/en-us/149042
- https://support.apple.com/en-us/149043
More Apple vulnerabilities
- TI-2026-46583 Improper authentication in Apple macOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-86962 · CVE Program
- CVE-2026-86962 · NVD
- FIRST EPSS
- GHSA-hmv8-g358-v6hx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences