An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Processing a maliciously crafted PDF may lead to arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.006
Published
2021-08-24
A permissions issue was addressed with improved validation. This issue is fixed in macOS Monterey 12.0.1. A local attacker may be able to read sensitive information.
CVSS Score
5.5
EPSS Score
0.0
Published
2021-08-24
Multiple out-of-bounds write issues were addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.
CVSS Score
7.8
EPSS Score
0.004
Published
2021-08-24
A race condition was addressed with improved locking. This issue is fixed in macOS Monterey 12.0.1. A malicious application may be able to execute arbitrary code with kernel privileges.
CVSS Score
7.0
EPSS Score
0.003
Published
2021-08-24
A denial of service issue was addressed with improved state handling. This issue is fixed in macOS Monterey 12.0.1. A remote attacker can cause a device to unexpectedly restart.
CVSS Score
7.5
EPSS Score
0.009
Published
2021-08-24
The issue was addressed with improved permissions logic. This issue is fixed in watchOS 8, macOS Big Sur 11.6, iOS 15 and iPadOS 15. A malicious application may be able to bypass Privacy preferences.
CVSS Score
9.1
EPSS Score
0.002
Published
2021-08-24
CVE-2021-30900
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.
Known exploited
CVSS Score
7.8
EPSS Score
0.014
Published
2021-08-24
Multiple out-of-bounds write issues were addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.
CVSS Score
7.8
EPSS Score
0.003
Published
2021-08-24
This issue was addressed with improved checks. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1. A local attacker may be able to cause unexpected application termination or arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.002
Published
2021-08-24
A sync issue was addressed with improved state validation. This issue is fixed in macOS Monterey 12.0.1. A user's messages may continue to sync after the user has signed out of iMessage.
CVSS Score
5.3
EPSS Score
0.002
Published
2021-08-24