CVE-2021-28550: Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution
First published: Thu Sep 02 2021(Updated: )
Adobe Acrobat and Reader contains a use-after-free vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user.
Credit: psirt@adobe.com psirt@adobe.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Adobe Acrobat Reader Notification Manager | ||
| All of | ||
| Any of | ||
| Adobe Acrobat Reader DC | >=15.008.20082<=21.001.20150 | |
| Adobe Acrobat Reader | >=15.008.20082<=21.001.20150 | |
| Microsoft Windows Operating System | ||
| All of | ||
| Any of | ||
| 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 | |
| Any of | ||
| macOS | ||
| Microsoft Windows Operating System | ||
| All of | ||
| Any of | ||
| Adobe Acrobat Reader DC | >=15.008.20082<=21.001.20150 | |
| Adobe Acrobat Reader | >=15.008.20082<=21.001.20150 | |
| macOS | ||
| 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 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-28550?
CVE-2021-28550 is a Use-After-Free vulnerability in Adobe Acrobat and Reader, which could allow an attacker to execute arbitrary code.
Which versions of Adobe Acrobat and Reader are affected by CVE-2021-28550?
Acrobat Reader DC versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier), and 2017.011.30194 (and earlier) are affected by this vulnerability.
What is the severity of CVE-2021-28550?
CVE-2021-28550 has a severity rating of 8.8, which is classified as critical.
How can an attacker exploit CVE-2021-28550?
An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user.
Where can I find more information about CVE-2021-28550?
You can find more information about CVE-2021-28550 on the Adobe Security Bulletin APSB21-29.
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