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TI-2026-80599 Aliases CVE-2026-86916GHSA-4fpm-vfr8-5mc2

Use after free in Apple iOS, iPadOS and macOS lets apps run code

Priority LOW 35CWE-416Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

Apple iOS and iPadOS before 26.7 and before 27, and Apple macOS before 15.8, before 26.7.2 and before 27, are affected by a use after free flaw (CWE-416). A local app with low privileges can execute arbitrary code with kernel privileges, without user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A use after 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 26.7.2. An app may be able to execute arbitrary code with kernel privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00203 10th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 26.7, 27macOS (Apple): 15.8, 26.7.2, 27

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 26.7; before 2726.7, 27Patch availableCNA
ApplemacOSbefore 15.8; before 26.7.2; before 2715.8, 26.7.2, 27Patch availableCNA
  • 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 26.7.2; before 27 Fixed in 15.8, 26.7.2, 27 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 26.7VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 26.7VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*15.0 to before 15.8; 26.0 to before 26.7.2VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 26.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 26.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 15.0 to before 15.8; 26.0 to before 26.7.2 Vulnerable ·Apple

Remediation

Update iOS and iPadOS to 26.7 or 27, and update macOS to 15.8, 26.7.2 or 27, which are the fixed versions listed for each product.

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, 26.7.2, 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, 26.7.2, 27

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-80705 Apple iOS, macOS and visionOS buffer overflow from a crafted imagePriority LOW 33
    Show all 2 records →

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-86916
  2. 2026-10-27 CVSS score added · CISA ADP
  3. 2026-10-27 Weakness changed · CISA ADP
  4. 2026-10-27 CISA SSVC decision points changed
  5. 2026-10-27 Alias added: GHSA-4fpm-vfr8-5mc2

References

Advisory 5

  • 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