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TI-2026-31883 Aliases CVE-2026-43794GHSA-gmc7-3cj9-5m78

Memory corruption in Apple Safari

Priority MEDIUM 40CWE-119Published · 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
Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, 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 0.00422 36th percentileScored 2026-11-07
Fix Partial Safari (Apple): 26.6.1iOS and iPadOS (Apple): 18.7.10, 26.6.1+4 more productsRed Hat: 1 without a fix

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 18.7.10; before 26.6.118.7.10, 26.6.1Patch 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 18.7.10; before 26.6.1 Fixed in 18.7.10, 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 · 4

CPEVersionsRoleVendor
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*before 26.6.1VulnerableApple
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 18.7.10; 26.0 to before 26.6.1VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 18.7.10; 26.0 to before 26.6.1VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*26.0 to before 26.6.2VulnerableApple
  • cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 26.6.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 18.7.10; 26.0 to before 26.6.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 18.7.10; 26.0 to before 26.6.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 26.0 to before 26.6.2 Vulnerable ·Apple

Remediation

  • Fix · CNA Safari (Apple) Fixed in 26.6.1
  • Fix · CNA iOS and iPadOS (Apple) Fixed in 18.7.10, 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

    29 records Highest priority Priority MEDIUM 3 MEDIUM, 26 LOW

    Other records, highest priority first

    • TI-2026-46546 Integer overflow in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2026-46543 Use after free in Apple iOS and iPadOSPriority MEDIUM 40
    • TI-2026-46547 Uncontrolled resource consumption in Apple iOS and iPadOSPriority LOW 29
    Show all 29 records →
  • Release ·

    Apple macOS 26.6.2

    24 records Highest priority Priority MEDIUM 2 MEDIUM, 22 LOW

    Other records, highest priority first

    • TI-2026-46543 Use after free in Apple iOS and iPadOSPriority MEDIUM 40
    • TI-2026-46547 Uncontrolled resource consumption in Apple iOS and iPadOSPriority LOW 29
    • TI-2026-46318 Use after free in Apple SafariPriority LOW 29
    Show all 24 records →
Show 3 more groups
  • Release ·

    Apple Safari, iOS and iPadOS 18.7.10, 26.6.1

    21 records Highest priority Priority MEDIUM 1 MEDIUM, 20 LOW

    Other records, highest priority first

    Show all 21 records →
  • Release ·

    Apple watchOS 27

    13 records Highest priority Priority MEDIUM 3 MEDIUM, 10 LOW

    Other records, highest priority first

    • TI-2026-46546 Integer overflow in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2026-46543 Use after free in Apple iOS and iPadOSPriority MEDIUM 40
    • TI-2026-46547 Uncontrolled resource consumption in Apple iOS and iPadOSPriority LOW 29
    Show all 13 records →
  • Release ·

    Apple tvOS 27

    12 records Highest priority Priority MEDIUM 3 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2026-46546 Integer overflow in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2026-46543 Use after free in Apple iOS and iPadOSPriority MEDIUM 40
    • TI-2026-46547 Uncontrolled resource consumption in Apple iOS and iPadOSPriority LOW 29
    Show all 12 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Not affected: 3 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-43794
  2. 2026-10-03 Alias added: GHSA-gmc7-3cj9-5m78

References

Advisory 4

Other 3

  • 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