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TI-2026-59424 Aliases CVE-2026-86950GHSA-3cf3-h799-fjvq

Out-of-bounds write in Apple iOS and iPadOS

Priority CRITICAL 97Exploited in the wildCWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
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-787 and the CVSS impact.

Summary

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.

Why it matters now

Exploitation Active In CISA KEV since 2026-09-29CISA due date 2026-10-13
EPSS 0.26166 98th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 18.7.11, 26.7.1macOS (Apple): 15.8.1, 26.7.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
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 18.7.11; before 26.7.118.7.11, 26.7.1Patch availableCNA
ApplemacOSbefore 15.8.1; before 26.7.115.8.1, 26.7.1Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 18.7.11; before 26.7.1 Fixed in 18.7.11, 26.7.1 Patch available CNA
  • macOS VendorApple Affected before 15.8.1; before 26.7.1 Fixed in 15.8.1, 26.7.1 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 18.7.11; 26.0 to before 26.7.1VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 18.7.11; 26.0 to before 26.7.1VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 15.8.1; 26.0 to before 26.7.1VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 18.7.11; 26.0 to before 26.7.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 18.7.11; 26.0 to before 26.7.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 15.8.1; 26.0 to before 26.7.1 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 18.7.11, 26.7.1
  • Fix · CNA macOS (Apple) Fixed in 15.8.1, 26.7.1

Timeline

  1. 2026-09-29 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2026-86950
  3. 2026-10-03 Alias added: GHSA-3cf3-h799-fjvq
  4. 2026-10-09 CISA KEV entry updated
  5. 2026-10-25 EPSS moved to the 95th–99th percentile
  6. 2026-10-26 Fix available: Apple/iOS and [email protected] · CNA
  7. 2026-10-26 1 new reference · CNA

References

Advisory 7

  • 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