The version of Adobe Acrobat installed on the remote macOS host is a version prior to 2017.011.30190, 2020.001.30020, or 2021.001.20135. It is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker     could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2021-21021, CVE-2021-21028, CVE-2021-21033, CVE-2021-21035, CVE-2021-21039, CVE-2021-21040,     CVE-2021-21088)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Memory corruption vulnerability when parsing a specially     crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code     execution in the context of the current user. Exploitation of this issue requires user interaction in that     a victim must open a malicious file. (CVE-2021-21058, CVE-2021-21059, CVE-2021-21062, CVE-2021-21063)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by an memory corruption vulnerability. An unauthenticated     attacker could leverage this vulnerability to cause an application denial-of-service. Exploitation of this     issue requires user interaction in that a victim must open a malicious file. (CVE-2021-21046)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An     unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the     context of the current user. Exploitation of this issue requires user interaction in that a victim must     open a malicious file. (CVE-2021-21017)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Path Traversal vulnerability. An unauthenticated attacker     could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2021-21037)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Adobe Reader installed on the remote Windows host is a version prior to 2017.011.30190, 2020.001.30020, or 2021.001.20135. It is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker     could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2021-21021, CVE-2021-21028, CVE-2021-21033, CVE-2021-21035, CVE-2021-21039, CVE-2021-21040,     CVE-2021-21088)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Memory corruption vulnerability when parsing a specially     crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code     execution in the context of the current user. Exploitation of this issue requires user interaction in that     a victim must open a malicious file. (CVE-2021-21058, CVE-2021-21059, CVE-2021-21062, CVE-2021-21063)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by an memory corruption vulnerability. An unauthenticated     attacker could leverage this vulnerability to cause an application denial-of-service. Exploitation of this     issue requires user interaction in that a victim must open a malicious file. (CVE-2021-21046)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An     unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the     context of the current user. Exploitation of this issue requires user interaction in that a victim must     open a malicious file. (CVE-2021-21017)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Path Traversal vulnerability. An unauthenticated attacker     could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2021-21037)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Adobe Acrobat installed on the remote Windows host is a version prior to 2017.011.30190, 2020.001.30020, or 2021.001.20135. It is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker     could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2021-21021, CVE-2021-21028, CVE-2021-21033, CVE-2021-21035, CVE-2021-21039, CVE-2021-21040,     CVE-2021-21088)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Memory corruption vulnerability when parsing a specially     crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code     execution in the context of the current user. Exploitation of this issue requires user interaction in that     a victim must open a malicious file. (CVE-2021-21058, CVE-2021-21059, CVE-2021-21062, CVE-2021-21063)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by an memory corruption vulnerability. An unauthenticated     attacker could leverage this vulnerability to cause an application denial-of-service. Exploitation of this     issue requires user interaction in that a victim must open a malicious file. (CVE-2021-21046)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An     unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the     context of the current user. Exploitation of this issue requires user interaction in that a victim must     open a malicious file. (CVE-2021-21017)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Path Traversal vulnerability. An unauthenticated attacker     could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2021-21037)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Adobe Reader installed on the remote macOS host is a version prior to 2017.011.30190, 2020.001.30020, or 2021.001.20135. It is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker     could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2021-21021, CVE-2021-21028, CVE-2021-21033, CVE-2021-21035, CVE-2021-21039, CVE-2021-21040,     CVE-2021-21088)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Memory corruption vulnerability when parsing a specially     crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code     execution in the context of the current user. Exploitation of this issue requires user interaction in that     a victim must open a malicious file. (CVE-2021-21058, CVE-2021-21059, CVE-2021-21062, CVE-2021-21063)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by an memory corruption vulnerability. An unauthenticated     attacker could leverage this vulnerability to cause an application denial-of-service. Exploitation of this     issue requires user interaction in that a victim must open a malicious file. (CVE-2021-21046)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An     unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the     context of the current user. Exploitation of this issue requires user interaction in that a victim must     open a malicious file. (CVE-2021-21017)

  - Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and     2017.011.30188 (and earlier) are affected by a Path Traversal vulnerability. An unauthenticated attacker     could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
    Exploitation of this issue requires user interaction in that a victim must open a malicious file.
    (CVE-2021-21037)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
146420	Adobe Acrobat < 2017.011.30190 / 2020.001.30020 / 2021.001.20135 Multiple Vulnerabilities (APSB21-09) (macOS)	Nessus	MacOS X Local Security Checks	2/11/2021	11/20/2024	high
146422	Adobe Reader < 2017.011.30190 / 2020.001.30020 / 2021.001.20135 Multiple Vulnerabilities (APSB21-09)	Nessus	Windows	2/11/2021	11/20/2024	high
146421	Adobe Acrobat < 2017.011.30190 / 2020.001.30020 / 2021.001.20135 Multiple Vulnerabilities (APSB21-09)	Nessus	Windows	2/11/2021	11/20/2024	high
146423	Adobe Reader < 2017.011.30190 / 2020.001.30020 / 2021.001.20135 Multiple Vulnerabilities (APSB21-09) (macOS)	Nessus	MacOS X Local Security Checks	2/11/2021	11/20/2024	high

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