high
8.8
CWE
787
Advisory Published
Updated

CVE-2021-28561: Adobe Acrobat Reader memory corruption vulnerability could lead to remote code execution

First published: Tue May 11 2021(Updated: )

Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a memory corruption 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.

Credit: psirt@adobe.com

Affected SoftwareAffected VersionHow to fix
Adobe Acrobat Reader DC>=15.008.20082<=21.001.20150
Adobe Acrobat Reader>=15.008.20082<=21.001.20150
Microsoft Windows Operating System
Adobe Acrobat Reader>=17.011.30059<=17.011.30194
Adobe Acrobat Reader>=20.001.30005<=20.001.30020
Adobe Acrobat Reader Notification Manager>=17.011.30059<=17.011.30194
Adobe Acrobat Reader Notification Manager>=20.001.30005<=20.001.30020
macOS

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-28561?

    CVE-2021-28561 has a high severity rating due to its potential for arbitrary code execution.

  • How do I fix CVE-2021-28561?

    To fix CVE-2021-28561, ensure that you update Adobe Acrobat Reader DC to the latest version beyond 2021.001.20150.

  • Which versions of Adobe Acrobat are affected by CVE-2021-28561?

    CVE-2021-28561 affects Adobe Acrobat Reader DC versions 2021.001.20150 and earlier, as well as various versions of Adobe Acrobat and Acrobat Reader up to specific earlier versions.

  • Can CVE-2021-28561 be exploited by authenticated users?

    CVE-2021-28561 can be exploited by unauthenticated users, making it particularly dangerous.

  • What type of vulnerability is CVE-2021-28561?

    CVE-2021-28561 is classified as a memory corruption vulnerability.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203