https://helpx.adobe.com/security/products/acrobat/apsb21-55.html

The version of Adobe Reader installed on the remote macOS host is a version prior to 2017.011.30202, 2020.004.30015, or 2021.007.20091. It is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a Buffer Overflow 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-2021-39863)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by an Uncontrolled Search Path Element vulnerability. An attacker could     leverage this vulnerability to achieve arbitrary code execution in the context of the current user via DLL     hijacking. Exploitation of this issue requires user interaction. (CVE-2021-35982)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     buttonGetIcon action that could result in 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-2021-39836)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     deleteItemAt action that could result in 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-2021-39837)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     buttonGetCaption action that could result in 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-2021-39838)

Note that Nessus has not tested for this issue 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 2017.011.30202, 2020.004.30015, or 2021.007.20091. It is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a Buffer Overflow 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-2021-39863)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by an Uncontrolled Search Path Element vulnerability. An attacker could     leverage this vulnerability to achieve arbitrary code execution in the context of the current user via DLL     hijacking. Exploitation of this issue requires user interaction. (CVE-2021-35982)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     buttonGetIcon action that could result in 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-2021-39836)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     deleteItemAt action that could result in 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-2021-39837)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     buttonGetCaption action that could result in 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-2021-39838)

Note that Nessus has not tested for this issue 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 2017.011.30202, 2020.004.30015, or 2021.007.20091. It is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a Buffer Overflow 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-2021-39863)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by an Uncontrolled Search Path Element vulnerability. An attacker could     leverage this vulnerability to achieve arbitrary code execution in the context of the current user via DLL     hijacking. Exploitation of this issue requires user interaction. (CVE-2021-35982)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     buttonGetIcon action that could result in 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-2021-39836)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     deleteItemAt action that could result in 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-2021-39837)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     buttonGetCaption action that could result in 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-2021-39838)

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

The version of Adobe Acrobat installed on the remote macOS host is a version prior to 2017.011.30202, 2020.004.30015, or 2021.007.20091. It is, therefore, affected by multiple vulnerabilities.

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a Buffer Overflow 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-2021-39863)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by an Uncontrolled Search Path Element vulnerability. An attacker could     leverage this vulnerability to achieve arbitrary code execution in the context of the current user via DLL     hijacking. Exploitation of this issue requires user interaction. (CVE-2021-35982)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     buttonGetIcon action that could result in 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-2021-39836)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     deleteItemAt action that could result in 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-2021-39837)

  - Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199     (and earlier) are affected by a use-after-free vulnerability in the processing of the AcroForm     buttonGetCaption action that could result in 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-2021-39838)

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

ID	Name	Product	Family	Severity
153365	Adobe Reader < 2017.011.30202 / 2020.004.30015 / 2021.007.20091 Multiple Vulnerabilities (APSB21-55) (macOS)	Nessus	MacOS X Local Security Checks	high
153364	Adobe Reader < 2017.011.30202 / 2020.004.30015 / 2021.007.20091 Multiple Vulnerabilities (APSB21-55)	Nessus	Windows	high
153363	Adobe Acrobat < 2017.011.30202 / 2020.004.30015 / 2021.007.20091 Multiple Vulnerabilities (APSB21-55)	Nessus	Windows	high
153362	Adobe Acrobat < 2017.011.30202 / 2020.004.30015 / 2021.007.20091 Multiple Vulnerabilities (APSB21-55) (macOS)	Nessus	MacOS X Local Security Checks	high

CVE-2021-39856

medium

New! CVE Severity Now Using CVSS v3

Description

References

Details

Risk Information

CVSS v2

CVSS v3

Vulnerable Software

Configuration 1

Configuration 2

Configuration 3

Configuration 4

Tenable Plugins

high

high

high

high