CVE-2021-21046: Acrobat Reader DC Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution
First published: Tue Feb 09 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 an memory corruption vulnerability. An unauthenticated attacker could leverage this vulnerability to cause an application denial-of-service. 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-2021-21046?
CVE-2021-21046 has been classified as a memory corruption vulnerability that could lead to a denial-of-service attack.
How do I fix CVE-2021-21046?
To mitigate CVE-2021-21046, users should update Adobe Acrobat and Acrobat Reader to the latest available versions.
Which versions of Adobe Acrobat are affected by CVE-2021-21046?
CVE-2021-21046 affects Acrobat Reader DC versions 2020.013.20074 and earlier, 2020.001.30018 and earlier, and 2017.011.30188 and earlier.
Can an unauthenticated attacker exploit CVE-2021-21046?
Yes, an unauthenticated attacker can leverage CVE-2021-21046 to potentially cause a denial-of-service condition.
What impact does CVE-2021-21046 have on users?
The impact of CVE-2021-21046 on users includes possible application crashes and denial-of-service disruptions.
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