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7.8

CVE-2021-30740: A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arb...

CVE-2021-30740 · published 5 years ago
Summary

A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arbitrary code with kernel privileges.

What to do
  • Update apple ipados to version 14.6 or later.
  • Update apple iphone_os to version 14.6 or later.
  • Update apple macos to version 11.4 or later.
  • Update apple tvos to version 14.6 or later.
  • Update apple watchos to version 7.5 or later.
Affected software
VendorProductAffected versions
apple ipados < 14.6
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 14.6
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos >= 11.0.1, < 11.4
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 14.6
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos < 7.5
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Original advisory text
A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arb...
A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arbitrary code with kernel privileges.
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
7.8 High
Exploitation
1% chance of attack within 30 days
Timeline
Published8 Sep 2021
Updated31 Oct 2026
First seen29 Sep 2026
Sources
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