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TI-2026-80706 Aliases CVE-2026-84634GHSA-vx7f-rhw5-j3wx

Race condition in Apple iOS, macOS and visionOS lets apps write kernel memory

Priority LOW 29CWE-362Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

A race condition in Apple iOS and iPadOS, macOS and visionOS before 27 is addressed with additional validation. The weakness is CWE-362: concurrent execution uses a shared resource without proper synchronization. A local app with low privileges can cause unexpected system termination or write kernel memory.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

A race condition was addressed with additional validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. An app may be able to cause unexpected system termination or write kernel memory.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00095 0th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 27macOS (Apple): 27+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOS and iPadOSbefore 2727Patch availableCNA
ApplemacOSbefore 2727Patch availableCNA
ApplevisionOSbefore 2727Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 27 Fixed in 27 Patch available CNA
  • macOS VendorApple Affected before 27 Fixed in 27 Patch available CNA
  • visionOS VendorApple Affected before 27 Fixed in 27 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 27.0VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 27.0VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 27.0VulnerableApple
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*before 27.0VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 27.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 27.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 27.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 27.0 Vulnerable ·Apple

Remediation

Update iOS and iPadOS, macOS and visionOS to version 27 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 27
  • Fix · CNA macOS (Apple) Fixed in 27
  • Fix · CNA visionOS (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 visionOS 27

    10 records Highest priority Priority LOW 10 LOW

    Other records, highest priority first

    • TI-2026-80705 Apple iOS, macOS and visionOS buffer overflow from a crafted imagePriority LOW 33
    • TI-2026-80593 Memory flaw in Apple platforms lets apps corrupt kernel memoryPriority LOW 33
    • TI-2026-80721 Null pointer dereference in Apple OS lets apps crash the systemPriority LOW 24
    Show all 10 records →
  • Release ·

    Apple iOS and iPadOS 27

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-80721 Null pointer dereference in Apple OS lets apps crash the systemPriority LOW 24
    • TI-2026-80592 Out-of-bounds write in Apple iOS, macOS and visionOSPriority LOW 24
    • TI-2026-80836 Out-of-bounds read in Apple operating systems leaks process memoryPriority LOW 20
    Show all 4 records →
Show 1 more group
  • Release ·

    Apple macOS 27

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-80596 Path traversal in Apple macOS lets apps break out of sandboxPriority MEDIUM 40
    • TI-2026-80707 Path traversal in Apple macOS lets malicious apps delete filesPriority LOW 27
    • TI-2026-80836 Out-of-bounds read in Apple operating systems leaks process memoryPriority LOW 20
    Show all 4 records →

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-84634
  2. 2026-10-27 Alias added: GHSA-vx7f-rhw5-j3wx
  3. 2026-11-02 CVSS score added · NVD
  4. 2026-11-02 Weakness changed · NVD
  5. 2026-11-03 CVSS score added · CISA ADP
  6. 2026-11-03 Weakness changed · CISA ADP
  7. 2026-11-03 CISA SSVC decision points changed

References

Advisory 3

  • 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
  • TI-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
See all 2382 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences