CVE-2021-28555: Adobe Acrobat Reader out-of-bounds Read could lead to information disclosure
First published: Thu Sep 02 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 an Out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to get access to sensitive information 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 | >=15.008.20082<=21.001.20150 | |
| Adobe Acrobat Reader | >=15.008.20082<=21.001.20150 | |
| Microsoft Windows | ||
| Adobe Acrobat Reader | >=17.011.30059<=17.011.30194 | |
| Adobe Acrobat Reader | >=20.001.30005<=20.001.30020 | |
| Adobe Acrobat Reader | >=17.011.30059<=17.011.30194 | |
| Adobe Acrobat Reader | >=20.001.30005<=20.001.30020 | |
| Apple iOS and macOS |
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Frequently Asked Questions
What is the severity of CVE-2021-28555?
CVE-2021-28555 is classified as a high severity vulnerability.
How do I fix CVE-2021-28555?
To fix CVE-2021-28555, update Adobe Acrobat DC and Acrobat Reader DC to the latest version available.
What type of vulnerability is CVE-2021-28555?
CVE-2021-28555 is an Out-of-bounds Read vulnerability that can lead to information disclosure.
Who is affected by CVE-2021-28555?
CVE-2021-28555 affects Acrobat Reader DC versions 2021.001.20150 and earlier, 2020.001.30020 and earlier, and 2017.011.30194 and earlier.
Can an attacker exploit CVE-2021-28555 remotely?
Yes, an unauthenticated attacker could exploit CVE-2021-28555 to access sensitive information.
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