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TI-2026-46578 Aliases CVE-2026-65391GHSA-fpph-f3w3-r7wh

Integer overflow in Apple Safari

Priority MEDIUM 40CWE-190Published · 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-190 and the CVSS impact.

Summary

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00413 35th percentileScored 2026-11-07
Fix Fixed Safari (Apple): 26.6.1iOS and iPadOS (Apple): 26.6.1+4 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
AppleSafaribefore 26.6.126.6.1Patch availableCNA
AppleiOS and iPadOSbefore 26.6.126.6.1Patch availableCNA
ApplemacOSbefore 26.6.226.6.2Patch availableCNA
AppletvOSbefore 2727Patch availableCNA
ApplevisionOSbefore 2727Patch availableCNA
ApplewatchOSbefore 2727Patch availableCNA
  • Safari VendorApple Affected before 26.6.1 Fixed in 26.6.1 Patch available CNA
  • iOS and iPadOS VendorApple Affected before 26.6.1 Fixed in 26.6.1 Patch available CNA
  • macOS VendorApple Affected before 26.6.2 Fixed in 26.6.2 Patch available CNA
  • tvOS VendorApple Affected before 27 Fixed in 27 Patch available CNA
  • visionOS VendorApple Affected before 27 Fixed in 27 Patch available CNA
  • watchOS VendorApple Affected before 27 Fixed in 27 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*before 26.6.1VulnerableApple
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 26.6.1VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 26.6.1VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 26.6.2VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 27.0VulnerableApple
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*before 27.0VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 27.0VulnerableApple
  • cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 26.6.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 26.6.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 26.6.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 26.6.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 27.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 27.0 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 27.0 Vulnerable ·Apple

Remediation

  • Fix · CNA Safari (Apple) Fixed in 26.6.1
  • Fix · CNA iOS and iPadOS (Apple) Fixed in 26.6.1
  • Fix · CNA macOS (Apple) Fixed in 26.6.2
  • Fix · CNA tvOS (Apple) Fixed in 27
  • Fix · CNA visionOS (Apple) Fixed in 27
  • Fix · CNA watchOS (Apple) Fixed in 27

Fixed in the same release

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

  • Release ·

    Apple visionOS 27

    92 records Highest priority Priority MEDIUM 8 MEDIUM, 84 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 92 records →
  • Release ·

    Apple watchOS 27

    78 records Highest priority Priority MEDIUM 8 MEDIUM, 70 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 78 records →
Show 4 more groups
  • Release ·

    Apple tvOS 27

    75 records Highest priority Priority MEDIUM 7 MEDIUM, 68 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 75 records →
  • Release ·

    Apple iOS and iPadOS 26.6.1

    5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-46577 Integer overflow in Apple SafariPriority MEDIUM 40
    • TI-2026-23117 Memory corruption in Apple iOS and iPadOSPriority LOW 39
    • TI-2026-46271 Out-of-bounds read in Apple iOS and iPadOSPriority LOW 30
    Show all 5 records →
  • Release ·

    Apple macOS 26.6.2

    4 records Highest priority Priority MEDIUM 2 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-46577 Integer overflow in Apple SafariPriority MEDIUM 40
    • TI-2026-46554 Apple iOS and iPadOS: A website may be able to determine a user's IP address with Private…Priority LOW 20
    • TI-2026-46551 Apple iOS and iPadOS: A website may be able to determine a user's IP address with Private…Priority LOW 20
    Show all 4 records →
  • Release ·

    Apple Safari 26.6.1

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-65391
  2. 2026-10-03 Alias added: GHSA-fpph-f3w3-r7wh

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 2382 →

Sources

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