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TI-2026-28756 Aliases CVE-2026-39877GHSA-hvwx-8xwj-pgx8

Memory corruption in Apple iOS and iPadOS

Priority LOW 35CWE-119Published · Updated

Key facts

Attack vector
Local
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-119 and the CVSS impact.

Summary

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An app may be able to disclose kernel memory.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00173 6th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 18.7.10, 26.5macOS (Apple): 14.8.8, 15.7.8, 26.5+3 more products

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 18.7.10; before 26.518.7.10, 26.5Patch availableCNA
ApplemacOSbefore 14.8.8; before 15.7.8; before 26.514.8.8, 15.7.8, 26.5Patch availableCNA
AppletvOSbefore 26.526.5Patch availableCNA
ApplevisionOSbefore 26.526.5Patch availableCNA
ApplewatchOSbefore 26.526.5Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 18.7.10; before 26.5 Fixed in 18.7.10, 26.5 Patch available CNA
  • macOS VendorApple Affected before 14.8.8; before 15.7.8; before 26.5 Fixed in 14.8.8, 15.7.8, 26.5 Patch available CNA
  • tvOS VendorApple Affected before 26.5 Fixed in 26.5 Patch available CNA
  • visionOS VendorApple Affected before 26.5 Fixed in 26.5 Patch available CNA
  • watchOS VendorApple Affected before 26.5 Fixed in 26.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*14.0 to before 14.8.8; 15.0 to before 15.7.8VulnerableApple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 14.0 to before 14.8.8; 15.0 to before 15.7.8 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 18.7.10, 26.5
  • Fix · CNA macOS (Apple) Fixed in 14.8.8, 15.7.8, 26.5
  • Fix · CNA tvOS (Apple) Fixed in 26.5
  • Fix · CNA visionOS (Apple) Fixed in 26.5
  • Fix · CNA watchOS (Apple) Fixed in 26.5

Fixed in the same release

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

  • Release ·

    Apple macOS 14.8.8, 15.7.8, 26.5

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-23085 Authentication bypass by spoofing in Apple macOSPriority LOW 24
    • TI-2026-23042 Authentication bypass by spoofing in Apple macOSPriority LOW 24
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-39877
  2. 2026-10-03 Alias added: GHSA-hvwx-8xwj-pgx8

References

Advisory 2

Other 6

  • 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