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TI-2026-46567 Aliases CVE-2026-65374GHSA-g4cq-5gxj-h4r8

Out-of-bounds write in Apple macOS

Priority MEDIUM 41CWE-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

A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious WebDAV server may result in code execution.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00528 44th percentileScored 2026-11-07
Fix Fixed macOS (Apple): 15.8, 26.7, 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
ApplemacOSbefore 15.8; before 26.7; before 2715.8, 26.7, 27Patch availableCNA
  • macOS VendorApple Affected before 15.8; before 26.7; before 27 Fixed in 15.8, 26.7, 27 Patch available CNA

CPE configurations NVD · 1

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

Remediation

  • Fix · CNA macOS (Apple) Fixed in 15.8, 26.7, 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, 27

    136 records Highest priority Priority MEDIUM 14 MEDIUM, 122 LOW

    Other records, highest priority first

    • TI-2026-46597 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 51
    • TI-2026-58158 Buffer overflow in Apple iOS and iPadOSPriority MEDIUM 50
    • TI-2026-58121 Double free in Apple iOS and iPadOSPriority MEDIUM 50
    Show all 136 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-65374
  2. 2026-10-03 Alias added: GHSA-g4cq-5gxj-h4r8

References

Advisory 3

  • 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