CVE-2021-30657
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. A malicious application may bypass Gatekeeper checks. Apple is aware of a report that this issue may have been actively exploited..
Known exploited
CVSS Score
5.5
EPSS Score
0.685
Published
2021-09-08
This issue was addressed with improved handling of file metadata. This issue is fixed in macOS Big Sur 11.3. A malicious application may bypass Gatekeeper checks.
CVSS Score
5.5
EPSS Score
0.004
Published
2021-09-08
A validation issue was addressed with improved logic. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, macOS Big Sur 11.3. A malicious application may be able to leak sensitive user information.
CVSS Score
6.5
EPSS Score
0.012
Published
2021-09-08
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to disclose kernel memory.
CVSS Score
7.5
EPSS Score
0.021
Published
2021-09-08
CVE-2021-30661
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Known exploited
CVSS Score
8.8
EPSS Score
0.045
Published
2021-09-08
CVE-2021-30663
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution.
Known exploited
CVSS Score
8.8
EPSS Score
0.037
Published
2021-09-08
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing a maliciously crafted file may lead to arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.01
Published
2021-09-08
CVE-2021-30665
A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Known exploited
CVSS Score
8.8
EPSS Score
0.037
Published
2021-09-08
This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.4. A person with physical access to a Mac may be able to bypass Login Window during a software update.
CVSS Score
4.6
EPSS Score
0.003
Published
2021-09-08
A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A malicious application may bypass Gatekeeper checks.
CVSS Score
5.5
EPSS Score
0.004
Published
2021-09-08