CVE-2021-28638: Adobe Acrobat Reader DC PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
First published: Fri Aug 20 2021(Updated: )
Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by a Heap-based Buffer overflow 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 | >=15.008.20082<=21.005.20054 | |
| Adobe Acrobat | >=17.011.30059<=17.011.30197 | |
| Adobe Acrobat | >=20.001.30005<=20.004.30005 | |
| Adobe Acrobat Reader | >=15.008.20082<=21.005.20054 | |
| Adobe Acrobat Reader | >=17.011.30059<=17.011.30197 | |
| Adobe Acrobat Reader | >=20.001.30005<=20.004.30005 |
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Frequently Asked Questions
What is the severity of CVE-2021-28638?
CVE-2021-28638 has a severity rating that could allow an unauthenticated attacker to execute arbitrary code.
How do I fix CVE-2021-28638?
To fix CVE-2021-28638, you should update Adobe Acrobat Reader DC to the latest version that addresses this vulnerability.
Which versions are affected by CVE-2021-28638?
CVE-2021-28638 affects Adobe Acrobat Reader DC versions 2021.005.20054 and earlier, 2020.004.30005 and earlier, and 2017.011.30197 and earlier.
Can CVE-2021-28638 be exploited remotely?
Yes, CVE-2021-28638 can be exploited by unauthenticated remote attackers to achieve code execution.
What type of vulnerability is CVE-2021-28638?
CVE-2021-28638 is a heap-based buffer overflow vulnerability affecting Adobe Acrobat applications.
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- version/adobe acrobat reader/17.011.30059
- version/adobe acrobat reader/17.011.30197
- version/adobe acrobat reader/20.001.30005
- version/adobe acrobat reader/20.004.30005