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TI-2026-31839 Aliases CVE-2026-43748GHSA-mph6-9jcc-qx8c

Out-of-bounds write in Apple iOS and iPadOS

Priority MEDIUM 50CWE-787Published · Updated

Key facts

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

Summary

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00585 48th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 26.6macOS (Apple): 15.7.8, 26.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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 26.626.6Patch availableCNA
ApplemacOSbefore 15.7.8; before 26.615.7.8, 26.6Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 26.6 Fixed in 26.6 Patch available CNA
  • macOS VendorApple Affected before 15.7.8; before 26.6 Fixed in 15.7.8, 26.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*15.0 to before 15.7.8; 26.0 to before 26.6VulnerableApple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 15.0 to before 15.7.8; 26.0 to before 26.6 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 26.6
  • Fix · CNA macOS (Apple) Fixed in 15.7.8, 26.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apple iOS and iPadOS 26.6

    25 records Highest priority Priority MEDIUM 12 MEDIUM, 13 LOW

    Other records, highest priority first

    • TI-2026-46307 Apple iOS and iPadOS: An app may be able to cause unexpected system terminationPriority MEDIUM 50
    • TI-2026-46284 Use after free in Apple iOS and iPadOSPriority MEDIUM 50
    • TI-2026-46268 Information disclosure in Apple iOS and iPadOSPriority MEDIUM 50
    Show all 25 records →
  • Release ·

    Apple macOS 15.7.8, 26.6

    12 records Highest priority Priority MEDIUM 5 MEDIUM, 7 LOW

    Other records, highest priority first

    • TI-2026-46303 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 50
    • TI-2026-46266 Path traversal in Apple macOSPriority MEDIUM 50
    • TI-2026-31901 Use after free in Apple iOS and iPadOSPriority MEDIUM 50
    Show all 12 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-43748
  2. 2026-10-03 Alias added: GHSA-mph6-9jcc-qx8c

References

Advisory 2

Other 1

  • 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
See all 3490 →

Sources

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