CISA Known Exploited Vulnerabilities Catalog

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild. Organizations should use the KEV catalog as an input to their vulnerability management prioritization framework.Y

    5.5

    CVSS31
    CVE-2020-27950 - Apple Multiple Products Memory Initialization Vulnerability -

    Action Due May 03, 2022 Target Vendor : Apple

    Description : Apple iOS, iPadOS, macOS, and watchOS contain a memory initialization vulnerability that may allow a malicious application to disclose kernel memory.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    7.8

    CVSS31
    CVE-2020-27932 - Apple Multiple Products Type Confusion Vulnerability -

    Action Due May 03, 2022 Target Vendor : Apple

    Description : Apple iOS, iPadOS, macOS, and watchOS contain a type confusion vulnerability that may allow a malicious application to execute code with kernel privileges.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    8.8

    CVSS31
    CVE-2020-9818 - Apple iOS, iPadOS, and watchOS Out-of-Bounds Write Vulnerability -

    Action Due May 03, 2022 Target Vendor : Apple

    Description : Apple iOS, iPadOS, and watchOS Mail contains an out-of-bounds write vulnerability which may allow memory modification or application termination when processing a maliciously crafted mail message.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    4.3

    CVSS31
    CVE-2020-9819 - Apple iOS, iPadOS, and watchOS Memory Corruption Vulnerability -

    Action Due May 03, 2022 Target Vendor : Apple

    Description : Apple iOS, iPadOS, and watchOS Mail contains a memory corruption vulnerability that may allow heap corruption when processing a maliciously crafted mail message.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    8.8

    CVSS31
    CVE-2021-30762 - Apple iOS Use-After-Free Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS WebKit contains a use-after-free vulnerability which may allow for code execution when processing maliciously crafted web content.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    7.0

    CVSS31
    CVE-2021-1782 - Apple Multiple Products Race Condition Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS, iPadOs, macOS, watchOS, and tvOS contain a race condition vulnerability that may allow a malicious application to elevate privileges.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    9.8

    CVSS31
    CVE-2021-1870 - Apple iOS, iPadOS, and macOS Remote Code Execution Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic issue which may allow a remote attacker to execute code.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    9.8

    CVSS31
    CVE-2021-1871 - Apple iOS, iPadOS, and macOS Remote Code Execution Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic issue which may allow a remote attacker to execute code.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    6.1

    CVSS31
    CVE-2021-1879 - Apple iOS, iPadOS, and watchOS Cross-Site Scripting (XSS) Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS, iPadOS, and watchOS WebKit contains a cross-site scripting (XSS) vulnerability when processing maliciously crafted web content.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    8.8

    CVSS31
    CVE-2021-30661 - Apple Multiple Products Use-After-Free Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS, iPadOS, macOS, watchOS, tvOS, and Safari WebKit Storage contain a use-after-free vulnerability which may allow for code execution when processing maliciously crafted web content.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    8.8

    CVSS31
    CVE-2021-30666 - Apple iOS Buffer Overflow Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS WebKit contains a buffer-overflow vulnerability which may allow for code execution when processing maliciously crafted web content.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    7.8

    CVSS31
    CVE-2021-30713 - Apple macOS Unspecified Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple macOS Transparency, Consent, and Control (TCC) contains an unspecified permissions issue which may allow a malicious application to bypass privacy preferences.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    5.5

    CVSS31
    CVE-2021-30657 - Apple macOS Unspecified Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple macOS contains an unspecified logic issue in System Preferences that may allow a malicious application to bypass Gatekeeper checks.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    8.8

    CVSS31
    CVE-2021-30665 - Apple Multiple Products Memory Corruption Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS, iPadOS, macOS, watchOS, and tvOS WebKit contain a memory corruption vulnerability which may allow for code execution when processing maliciously crafted web content.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    8.8

    CVSS31
    CVE-2021-33742 - Microsoft Windows MSHTML Platform Remote Code Execution Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Microsoft

    Description : Microsoft Windows MSHTML Platform contains an unspecified vulnerability that allows for remote code execution.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    8.8

    CVSS31
    CVE-2021-30663 - Apple Multiple Products Integer Overflow Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS, iPadOS, macOS, tvOS, and Safari WebKit contain an integer overflow vulnerability which may allow for code execution when processing maliciously crafted web content.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    8.8

    CVSS31
    CVE-2021-30761 - Apple iOS Memory Corruption Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS WebKit contains a memory corruption vulnerability which may allow for code execution when processing maliciously crafted web content.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    7.8

    CVSS31
    CVE-2021-30869 - Apple iOS, iPadOS, and macOS Type Confusion Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Apple

    Description : Apple iOS, iPadOS, and macOS contain a type confusion vulnerability in the XNU which may allow a malicious application to execute code with kernel privileges.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    7.8

    CVSS31
    CVE-2020-9859 - Apple Multiple Products Code Execution Vulnerability -

    Action Due May 03, 2022 Target Vendor : Apple

    Description : Apple iOS, iPadOS, macOS, watchOS, and tvOS contain an unspecified vulnerability that may allow an application to execute code with kernel privileges.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago

    9.8

    CVSS31
    CVE-2021-20090 - Arcadyan Buffalo Firmware Path Traversal Vulnerability -

    Action Due Nov 17, 2021 Target Vendor : Arcadyan

    Description : Arcadyan Buffalo firmware contains a path traversal vulnerability that could allow unauthenticated, remote attackers to bypass authentication and access sensitive information. This vulnerability affects multiple routers across several different vendors.

    Action : Apply updates per vendor instructions.

    Known To Be Used in Ransomware Campaigns? : Unknown

    Alert Date: Nov 03, 2021 | 1116 days ago
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