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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
| Vendor | Product | Affected 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.
References
- https://support.apple.com/en-us/HT212528 Vendor Advisory
- https://support.apple.com/en-us/HT212529 Vendor Advisory
- https://support.apple.com/en-us/HT212532 Vendor Advisory
- https://support.apple.com/en-us/HT212533 Vendor Advisory
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)
Timeline
Published8 Sep 2021
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2021-30740 · NVD
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