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TI-2025-27984 Aliases CVE-2025-43276GHSA-xv2q-4cq2-h5pc

Time-of-check time-of-use race condition in Apple macOS

Priority LOW 30CWE-367Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

A logic error was addressed with improved error handling. This issue is fixed in macOS Sequoia 15.6. iCloud Private Relay may not activate when more than one user is logged in at the same time.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.004 34th percentileScored 2026-11-07
Fix Fixed macOS (Apple): 15.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

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 15.615.6Patch availableCNA
  • macOS VendorApple Affected before 15.6 Fixed in 15.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 15.6VulnerableApple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 15.6 Vulnerable ·Apple

Remediation

  • Fix · CNA macOS (Apple) Fixed in 15.6

Fixed in the same release

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

  • Release ·

    Apple macOS 15.6

    31 records Highest priority Priority CRITICAL 1 CRITICAL, 6 MEDIUM, 24 LOW

    Other records, highest priority first

    • TI-2025-22512 Memory corruption in Apple SafariPriority CRITICAL 97
    • TI-2025-27946 Improper input validation in Apple iOS and iPadOSPriority MEDIUM 51
    • TI-2025-27949 Out-of-bounds write in Apple macOSPriority MEDIUM 50
    Show all 31 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-43276
  2. 2026-10-03 Alias added: GHSA-xv2q-4cq2-h5pc

References

Advisory 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