CVE-2021-21035: Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution
First published: Thu Feb 11 2021(Updated: )
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.
Credit: psirt@adobe.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Adobe Acrobat Reader | >=17.0<=17.011.30188 | |
| Adobe Acrobat Reader | >=20.0<=20.001.30018 | |
| Adobe Acrobat | <=20.013.20074 | |
| Adobe Acrobat Reader | >=17.0<=17.011.30188 | |
| Adobe Acrobat Reader | >=20.0<=20.001.300183 | |
| Adobe Acrobat Reader | <=20.013.20074 | |
| Apple iOS and macOS | ||
| Microsoft Windows |
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Frequently Asked Questions
What is the severity of CVE-2021-21035?
CVE-2021-21035 has a high severity rating due to its potential to allow arbitrary code execution.
How do I fix CVE-2021-21035?
To fix CVE-2021-21035, update Adobe Acrobat Reader DC to the latest version that addresses this vulnerability.
Who is affected by CVE-2021-21035?
CVE-2021-21035 affects versions of Adobe Acrobat Reader DC, Adobe Acrobat Reader, and related products up to specified versions.
What type of vulnerability is CVE-2021-21035?
CVE-2021-21035 is classified as a Use After Free vulnerability.
What could an attacker achieve by exploiting CVE-2021-21035?
An attacker exploiting CVE-2021-21035 could achieve arbitrary code execution on the affected system.
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