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TI-2026-16729 Aliases CVE-2026-20673GHSA-74vw-h65p-vr44

Apple iOS and iPadOS: Turning off "Load remote content in messages” may not apply to all…

Priority LOW 30Published · Updated

Key facts

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

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

Summary

A logic issue was addressed with improved checks. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. Turning off "Load remote content in messages” may not apply to all mail previews.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00343 27th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 18.7.5macOS (Apple): 14.8.4, 15.7.4, 26.3

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
AppleiOS and iPadOSbefore 18.7.518.7.5Patch availableCNA
ApplemacOSbefore 14.8.4; before 15.7.4; before 26.314.8.4, 15.7.4, 26.3Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 18.7.5 Fixed in 18.7.5 Patch available CNA
  • macOS VendorApple Affected before 14.8.4; before 15.7.4; before 26.3 Fixed in 14.8.4, 15.7.4, 26.3 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 18.7.5VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 18.7.5VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 14.8.4; 15.0 to before 15.7.4; 26.0 to before 26.3VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 18.7.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 18.7.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 14.8.4; 15.0 to before 15.7.4; 26.0 to before 26.3 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 18.7.5
  • Fix · CNA macOS (Apple) Fixed in 14.8.4, 15.7.4, 26.3

Fixed in the same release

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

  • Release ·

    Apple macOS 14.8.4, 15.7.4, 26.3

    25 records Highest priority Priority MEDIUM 1 MEDIUM, 24 LOW

    Other records, highest priority first

    • TI-2026-16733 Time-of-check time-of-use race condition in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2026-16723 Protection mechanism failure in Apple iOS and iPadOSPriority LOW 39
    • TI-2026-16731 Out-of-bounds read in Apple iOS and iPadOSPriority LOW 36
  • Release ·

    Apple iOS and iPadOS 18.7.5

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-16673 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2026-16662 Memory corruption in Apple iOS and iPadOSPriority LOW 21
    • TI-2026-16713 Improper authorization in Apple SafariPriority LOW 15

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20673
  2. 2026-10-03 Alias added: GHSA-74vw-h65p-vr44

References

  • 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 2382 →

Sources