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TI-2026-46583 Aliases CVE-2026-65400GHSA-cwph-f4w9-f4wq

Improper authentication in Apple macOS

Priority CRITICAL 100Exploited in the wildCWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
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-287.

Summary

An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.

Why it matters now

Exploitation Active In CISA KEV since 2026-08-18CISA due date 2026-08-21
EPSS 0.01723 77th percentileScored 2026-11-07
Fix Fixed macOS (Apple): 14.8.9, 15.7.9, 26.6.1 +2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
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
ApplemacOSbefore 14.8.9; before 15.7.9; before 26.6.1; before 26.7; before 2714.8.9, 15.7.9, 26.6.1, 26.7, 27Patch availableCNA
  • macOS VendorApple Affected before 14.8.9; before 15.7.9; before 26.6.1; before 26.7; before 27 Fixed in 14.8.9, 15.7.9, 26.6.1, 26.7, 27 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*14.0 to before 14.8.9; 15.0 to before 15.7.9; 26.0 to before 26.6.1VulnerableApple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 14.0 to before 14.8.9; 15.0 to before 15.7.9; 26.0 to before 26.6.1 Vulnerable ·Apple

Remediation

  • Fix · CNA macOS (Apple) Fixed in 14.8.9, 15.7.9, 26.6.1, 26.7, 27

Timeline

  1. 2026-08-18 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2026-65400
  3. 2026-10-03 Alias added: GHSA-cwph-f4w9-f4wq

References

Advisory 6

  • 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 3490 →

Sources

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