Apple

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2021-1861 1Apple 1Macos Jun 17, 2026 Sep 8, 2021 N/A· v4 4.3 MEDIUM· v3 4.3 MEDIUM· v2 An issue existed in determining cache occupancy. The issue was addressed through improved logic. This issue is fixed in macOS Big Sur 11.3. A malicious website may be able to track users by setting state in a cache.
CVE-2021-1860 1Apple 6Ipados Iphone OsMac Os X+3 more Jun 17, 2026 Sep 8, 2021 N/A· v4 6.5 MEDIUM· v3 7.1 HIGH· v2 A memory initialization issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macO...Show more A memory initialization issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. A malicious application may be able to disclose kernel memory.Show less
CVE-2021-1859 1Apple 1Macos Jun 17, 2026 Sep 8, 2021 N/A· v4 7.5 HIGH· v3 7.8 HIGH· v2 A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3. Locked Notes content may have been unexpectedly unlocked.
CVE-2021-1858 1Apple 6Ipados Iphone OsMac Os X+3 more Jun 17, 2026 Sep 8, 2021 N/A· v4 7.8 HIGH· v3 6.8 MEDIUM· v2 Processing a maliciously crafted image may lead to arbitrary code execution. This issue is fixed in Security Update 2021-002 Catalina, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. An out-of-bound...Show more Processing a maliciously crafted image may lead to arbitrary code execution. This issue is fixed in Security Update 2021-002 Catalina, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. An out-of-bounds write issue was addressed with improved bounds checking.Show less
CVE-2021-1857 1Apple 8Icloud IpadosIphone Os+5 more Jun 17, 2026 Sep 8, 2021 N/A· v4 6.5 MEDIUM· v3 4.3 MEDIUM· v2 A memory initialization issue was addressed with improved memory handling. This issue is fixed in iTunes 12.11.3 for Windows, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iCloud for Windows 12.3, m...Show more A memory initialization issue was addressed with improved memory handling. This issue is fixed in iTunes 12.11.3 for Windows, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iCloud for Windows 12.3, macOS Big Sur 11.3, watchOS 7.4, tvOS 14.5, iOS 14.5 and iPadOS 14.5. Processing maliciously crafted web content may disclose sensitive user information.Show less
CVE-2021-1855 1Apple 1Macos Jun 17, 2026 Sep 8, 2021 N/A· v4 6.5 MEDIUM· v3 6.4 MEDIUM· v2 A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3. A malicious website may be able to force unnecessary network connections to fetch its favicon.
CVE-2021-1854 1Apple 2Ipados Iphone Os Jun 17, 2026 Sep 8, 2021 N/A· v4 4.3 MEDIUM· v3 4.3 MEDIUM· v2 A call termination issue with was addressed with improved logic. This issue is fixed in iOS 14.5 and iPadOS 14.5. A legacy cellular network can automatically answer an incoming call when an ongoing call ends or drops. .
CVE-2021-1853 1Apple 1Macos Jun 17, 2026 Sep 8, 2021 N/A· v4 7.8 HIGH· v3 4.6 MEDIUM· v2 A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3. A local attacker may be able to elevate their privileges.
CVE-2021-1852 1Apple 2Ipados Iphone Os Jun 17, 2026 Sep 8, 2021 N/A· v4 5.5 MEDIUM· v3 4.9 MEDIUM· v2 An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.5 and iPadOS 14.5. A local user may be able to read kernel memory.
CVE-2021-1851 1Apple 6Ipados Iphone OsMac Os X+3 more Jun 17, 2026 Sep 8, 2021 N/A· v4 8.8 HIGH· v3 9.3 HIGH· v2 A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3....Show more A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. An application may be able to execute arbitrary code with kernel privileges.Show less
CVE-2021-1849 1Apple 5Ipados Iphone OsMacos+2 more Jun 17, 2026 Sep 8, 2021 N/A· v4 7.5 HIGH· v3 5.0 MEDIUM· v2 An issue in code signature validation was addressed with improved checks. 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 bypass Privacy...Show more An issue in code signature validation was addressed with improved checks. 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 bypass Privacy preferences.Show less
CVE-2021-1848 1Apple 2Ipados Iphone Os Jun 17, 2026 Sep 8, 2021 N/A· v4 5.5 MEDIUM· v3 2.1 LOW· v2 The issue was addressed with improved UI handling. This issue is fixed in iOS 14.5 and iPadOS 14.5. A local user may be able to view sensitive information in the app switcher.
CVE-2021-1847 1Apple 2Mac Os X Macos Jun 17, 2026 Sep 8, 2021 N/A· v4 7.8 HIGH· v3 6.8 MEDIUM· v2 A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. Opening a maliciously crafted file may lead...Show more A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. Opening a maliciously crafted file may lead to unexpected application termination or arbitrary code execution.Show less
CVE-2021-1846 1Apple 6Ipados Iphone OsMac Os X+3 more Jun 17, 2026 Sep 8, 2021 N/A· v4 5.5 MEDIUM· v3 4.3 MEDIUM· v2 Processing a maliciously crafted audio file may disclose restricted memory. This issue is fixed in Security Update 2021-002 Catalina, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. An out-of-bounds...Show more Processing a maliciously crafted audio file may disclose restricted memory. This issue is fixed in Security Update 2021-002 Catalina, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. An out-of-bounds read was addressed with improved input validation.Show less
CVE-2021-1843 1Apple 6Ipados Iphone OsMac Os X+3 more Jun 17, 2026 Sep 8, 2021 N/A· v4 7.8 HIGH· v3 6.8 MEDIUM· v2 This issue was addressed with improved checks. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a...Show more This issue was addressed with improved checks. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted image may lead to arbitrary code execution.Show less
CVE-2021-1841 1Apple 2Mac Os X Macos Jun 17, 2026 Sep 8, 2021 N/A· v4 7.8 HIGH· v3 9.3 HIGH· v2 A malicious application may be able to execute arbitrary code with kernel privileges. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. An out-of-bounds write issue was addressed with improved...Show more A malicious application may be able to execute arbitrary code with kernel privileges. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. An out-of-bounds write issue was addressed with improved bounds checking.Show less
CVE-2021-1840 1Apple 2Mac Os X Macos Jun 17, 2026 Sep 8, 2021 N/A· v4 7.8 HIGH· v3 4.6 MEDIUM· v2 A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate the...Show more A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate their privileges.Show less
CVE-2021-1839 1Apple 2Mac Os X Macos Jun 17, 2026 Sep 8, 2021 N/A· v4 7.8 HIGH· v3 4.6 MEDIUM· v2 The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate their privil...Show more The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate their privileges.Show less
CVE-2021-1838 1Apple 2Ipados Iphone Os Jun 17, 2026 Sep 8, 2021 N/A· v4 7.8 HIGH· v3 6.8 MEDIUM· v2 This issue was addressed with improved checks. This issue is fixed in iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution.
CVE-2021-1837 1Apple 2Ipados Iphone Os Jun 17, 2026 Sep 8, 2021 N/A· v4 5.3 MEDIUM· v3 4.3 MEDIUM· v2 A certificate validation issue was addressed. This issue is fixed in iOS 14.5 and iPadOS 14.5. An attacker in a privileged network position may be able to alter network traffic.

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