CVE-2021-28637: Adobe Acrobat Pro DC PDFLibTool Out-of-Bounds Read 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 an out-of-bounds read vulnerability. An unauthenticated attacker could leverage this vulnerability achieve arbitrary read / write system 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<=21.005.20054 | |
| 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 |
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.
Frequently Asked Questions
What is the severity of CVE-2021-28637?
CVE-2021-28637 is classified as a critical vulnerability affecting Adobe Acrobat and Reader.
How do I fix CVE-2021-28637?
To mitigate CVE-2021-28637, update Adobe Acrobat and Reader to the latest versions provided by Adobe.
What types of attackers can exploit CVE-2021-28637?
CVE-2021-28637 can be exploited by unauthenticated attackers to read or write system information.
Which versions of Adobe Acrobat are affected by CVE-2021-28637?
CVE-2021-28637 affects Adobe Acrobat Reader DC versions up to 21.005.20054, 2020.004.30005, and 2017.011.30197.
What is an out-of-bounds read vulnerability like CVE-2021-28637?
An out-of-bounds read vulnerability, such as CVE-2021-28637, allows an attacker to access data outside the intended boundaries of a memory buffer.
- agent/type
- agent/severity
- agent/references
- agent/title
- agent/author
- agent/weakness
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/adobe
- canonical/adobe acrobat
- version/adobe acrobat/15.008.20082
- version/adobe acrobat/21.005.20054
- version/adobe acrobat/17.011.30059
- version/adobe acrobat/17.011.30197
- version/adobe acrobat/20.001.30005
- version/adobe acrobat/20.004.30005
- canonical/adobe acrobat reader
- version/adobe acrobat reader/15.008.20082
- version/adobe acrobat reader/21.005.20054
- 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