CVE-2021-21017: Adobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability
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 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 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 Dc | <=20.013.20074 | |
| Adobe Acrobat Reader | >=17.0<=17.011.30188 | |
| Adobe Acrobat Reader | >=20.0<=20.001.300183 | |
| Adobe Acrobat Reader DC | <=20.013.20074 | |
| Apple macOS | ||
| Microsoft Windows | ||
| Adobe Acrobat and Reader | ||
| All of | ||
| Any of | ||
| Adobe Acrobat Reader | >=17.0<=17.011.30188 | |
| Adobe Acrobat Reader | >=20.0<=20.001.30018 | |
| Adobe Acrobat Dc | <=20.013.20074 | |
| Adobe Acrobat Reader | >=17.0<=17.011.30188 | |
| Adobe Acrobat Reader | >=20.0<=20.001.300183 | |
| Adobe Acrobat Reader DC | <=20.013.20074 | |
| Any of | ||
| Apple macOS | ||
| Microsoft Windows |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Adobe Acrobat and Reader vulnerability?
The vulnerability ID for this Adobe Acrobat and Reader vulnerability is CVE-2021-21017.
Which versions of Adobe Acrobat and Reader are affected by this vulnerability?
Acrobat Reader DC versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier), and 2017.011.30188 (and earlier) are affected by this vulnerability.
What is the severity rating of CVE-2021-21017?
The severity rating of CVE-2021-21017 is 8.8 (high).
How can an attacker exploit this vulnerability?
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 this vulnerability?
You can find more information about this vulnerability at the following link: [Adobe Security Bulletin APSB21-09](https://helpx.adobe.com/security/products/acrobat/apsb21-09.html).
- agent/type
- agent/description
- agent/title
- agent/weakness
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/severity
- agent/tags
- agent/first-publish-date
- exploited/true
- collector/cisa-known-exploited
- source/CISA
- agent/software-canonical-lookup
- agent/author
- agent/references
- agent/softwarecombine
- agent/event
- collector/nvd-cve
- source/NVD
- vendor/adobe
- canonical/adobe acrobat reader
- version/adobe acrobat reader/17.0
- version/adobe acrobat reader/17.011.30188
- version/adobe acrobat reader/20.0
- version/adobe acrobat reader/20.001.30018
- canonical/adobe acrobat dc
- version/adobe acrobat dc/20.013.20074
- version/adobe acrobat reader/20.001.300183
- canonical/adobe acrobat reader dc
- version/adobe acrobat reader dc/20.013.20074
- vendor/apple
- canonical/apple macos
- vendor/microsoft
- canonical/microsoft windows
- canonical/adobe acrobat and reader