medium
4.3
CWE
416
Advisory Published
Updated

CVE-2021-21061: Acrobat Pro DC Use-After-Free Vulnerability Could Lead to Information Disclosure

First published: Tue Feb 09 2021(Updated: )

Acrobat Pro 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 when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to disclose sensitive information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Credit: psirt@adobe.com

Affected SoftwareAffected VersionHow to fix
Adobe Acrobat Reader>=17.0<=17.011.30188
Adobe Acrobat Reader>=20.0<=20.001.30018
Adobe Acrobat Reader DC<=20.013.20074
Adobe Acrobat Reader Notification Manager>=17.0<=17.011.30188
Adobe Acrobat Reader Notification Manager>=20.0<=20.001.300183
Adobe Acrobat Reader<=20.013.20074
macOS
Microsoft Windows Operating System

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-21061?

    CVE-2021-21061 is classified as a critical severity vulnerability due to its potential to allow arbitrary code execution.

  • How do I fix CVE-2021-21061?

    To fix CVE-2021-21061, update Adobe Acrobat Pro DC and Adobe Acrobat Reader to the latest versions, specifically versions after 2020.013.20074 for DC and 20.001.30018 or 17.011.30189 for Reader.

  • What types of software are affected by CVE-2021-21061?

    CVE-2021-21061 affects Adobe Acrobat Pro DC, Adobe Acrobat Reader, and their respective versions specified in the vulnerability details.

  • Can CVE-2021-21061 be exploited remotely?

    Yes, CVE-2021-21061 can be exploited remotely by an unauthenticated attacker through specially crafted PDF documents.

  • What are the consequences of exploiting CVE-2021-21061?

    Exploiting CVE-2021-21061 can lead to code execution, allowing attackers to control the affected system.

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