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Null pointer dereference in Apple iOS and macOS enables DoS

Priority LOW 21CWE-476Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-476.

Summary

Apple iOS and iPadOS before 26.7.2 and before 27.2, macOS before 26.7.2 and before 27.2, and tvOS, visionOS and watchOS before 27.2 are affected. A null pointer dereference (CWE-476) is addressed with improved validation. An attacker in physical proximity with no privileges and no user interaction may be able to cause a denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

A null pointer dereference was addressed with improved validation. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Tahoe 26.7.2, tvOS 27.2, visionOS 27.2, watchOS 27.2. An attacker in physical proximity may be able to cause a denial-of-service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00279 20th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 26.7.2, 27.2macOS (Apple): 26.7.2, 27.2+3 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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 26.7.2; before 27.226.7.2, 27.2Patch availableCNA
ApplemacOSbefore 26.7.2; before 27.226.7.2, 27.2Patch availableCNA
AppletvOSbefore 27.227.2Patch availableCNA
ApplevisionOSbefore 27.227.2Patch availableCNA
ApplewatchOSbefore 27.227.2Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 26.7.2; before 27.2 Fixed in 26.7.2, 27.2 Patch available CNA
  • macOS VendorApple Affected before 26.7.2; before 27.2 Fixed in 26.7.2, 27.2 Patch available CNA
  • tvOS VendorApple Affected before 27.2 Fixed in 27.2 Patch available CNA
  • visionOS VendorApple Affected before 27.2 Fixed in 27.2 Patch available CNA
  • watchOS VendorApple Affected before 27.2 Fixed in 27.2 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 26.7.2; 27.0 to before 27.2VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 26.7.2; 27.0 to before 27.2VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 26.7.2; 27.0 to before 27.2VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 27.2VulnerableApple
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*before 27.2VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 27.2VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 26.7.2; 27.0 to before 27.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 26.7.2; 27.0 to before 27.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 26.7.2; 27.0 to before 27.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 27.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 27.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 27.2 Vulnerable ·Apple

Remediation

Update iOS and iPadOS to 26.7.2 or 27.2, macOS Tahoe to 26.7.2, macOS Golden Gate to 27.2, and tvOS, visionOS and watchOS to 27.2.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 26.7.2, 27.2
  • Fix · CNA macOS (Apple) Fixed in 26.7.2, 27.2
  • Fix · CNA tvOS (Apple) Fixed in 27.2
  • Fix · CNA visionOS (Apple) Fixed in 27.2
  • Fix · CNA watchOS (Apple) Fixed in 27.2

Fixed in the same release

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

  • Release ·

    Apple visionOS 27.2

    124 records Highest priority Priority MEDIUM 34 MEDIUM, 90 LOW

    Other records, highest priority first

    • TI-2026-80879 Apple iOS, macOS and visionOS flaw allows WebContent sandbox escapePriority MEDIUM 51
    • TI-2026-80671 Sandbox escape in Apple Safari and other Apple platformsPriority MEDIUM 50
    • TI-2026-80785 Use-after-free in Apple iOS, iPadOS, macOS and other systemsPriority MEDIUM 48
  • Release ·

    Apple iOS and iPadOS 26.7.2, 27.2

    118 records Highest priority Priority MEDIUM 28 MEDIUM, 90 LOW

    Other records, highest priority first

    • TI-2026-80879 Apple iOS, macOS and visionOS flaw allows WebContent sandbox escapePriority MEDIUM 51
    • TI-2026-80785 Use-after-free in Apple iOS, iPadOS, macOS and other systemsPriority MEDIUM 48
    • TI-2026-80867 Resource exhaustion in Apple iOS, iPadOS, macOS and visionOSPriority MEDIUM 41
Show 3 more groups
  • Release ·

    Apple tvOS 27.2

    72 records Highest priority Priority MEDIUM 16 MEDIUM, 56 LOW

    Other records, highest priority first

    • TI-2026-80785 Use-after-free in Apple iOS, iPadOS, macOS and other systemsPriority MEDIUM 48
    • TI-2026-80618 Memory corruption in Apple platforms via crafted video filePriority MEDIUM 42
    • TI-2026-80853 Use-after-free in Apple Safari and iOS enables code executionPriority MEDIUM 41
  • Release ·

    Apple watchOS 27.2

    61 records Highest priority Priority MEDIUM 15 MEDIUM, 46 LOW

    Other records, highest priority first

    • TI-2026-80785 Use-after-free in Apple iOS, iPadOS, macOS and other systemsPriority MEDIUM 48
    • TI-2026-80618 Memory corruption in Apple platforms via crafted video filePriority MEDIUM 42
    • TI-2026-80853 Use-after-free in Apple Safari and iOS enables code executionPriority MEDIUM 41
  • Release ·

    Apple macOS 26.7.2, 27.2

    17 records Highest priority Priority MEDIUM 4 MEDIUM, 13 LOW

    Other records, highest priority first

    • TI-2026-80616 Memory handling flaw in Apple macOS lets apps crash the systemPriority MEDIUM 46
    • TI-2026-80871 Improper input validation in Apple iOS, macOS, visionOS and watchOSPriority MEDIUM 40
    • TI-2026-80649 Out-of-bounds read in Apple iOS, iPadOS and macOS causes system crashPriority MEDIUM 40

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-112566
  2. 2026-10-27 Alias added: GHSA-hx9c-ccpp-34pv
  3. 2026-11-03 CVSS score added · CISA ADP
  4. 2026-11-03 Weakness changed · CISA ADP
  5. 2026-11-03 CISA SSVC decision points changed

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