8.5
CWE
427
Advisory Published
Updated

CVE-2021-28636: Adobe Acrobat Reader Unquoted Search Path Vulnerability

First published: Fri Aug 20 2021(Updated: )

Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by an Uncontrolled Search Path Element vulnerability. An attacker with access to the victim's C:/ folder 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.

Credit: psirt@adobe.com

Affected SoftwareAffected VersionHow to fix
Adobe Acrobat>=15.008.20082<=21.005.20054
Adobe Acrobat>=17.011.30059<=17.011.30197
Adobe Acrobat>=20.001.30005<=20.004.30005
Adobe Acrobat Reader>=15.008.20082<=21.005.20054
Adobe Acrobat Reader>=17.011.30059<=17.011.30197
Adobe Acrobat Reader>=20.001.30005<=20.004.30005

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Frequently Asked Questions

  • What is the severity of CVE-2021-28636?

    CVE-2021-28636 has been classified as a critical vulnerability due to its potential to allow attackers to execute arbitrary code.

  • How do I fix CVE-2021-28636?

    To fix CVE-2021-28636, users should update Adobe Acrobat Reader DC to the latest version, which addresses this vulnerability.

  • What software versions are affected by CVE-2021-28636?

    CVE-2021-28636 affects Adobe Acrobat Reader DC versions 2021.005.20054 and earlier, 2020.004.30005 and earlier, and 2017.011.30197 and earlier.

  • What type of vulnerability is CVE-2021-28636?

    CVE-2021-28636 is categorized as an Uncontrolled Search Path Element vulnerability.

  • Can an attacker exploit CVE-2021-28636 remotely?

    No, an attacker would need access to the victim's C:/ folder to exploit CVE-2021-28636.

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