CVE-2021-40728: Adobe Acrobat Reader DC Use After Free Arbitrary Code Execution
First published: Fri Oct 15 2021(Updated: )
Adobe Acrobat Reader DC version 21.007.20095 (and earlier), 21.007.20096 (and earlier), 20.004.30015 (and earlier), and 17.011.30202 (and earlier) is affected by a use-after-free vulnerability in the processing of the GetURL function on a global object window that could result in 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 Reader DC | >=15.008.20082<=21.007.20095 | |
| Adobe Acrobat Reader | >=15.008.20082<=21.007.20095 | |
| Microsoft Windows Operating System | ||
| Adobe Acrobat Reader DC | >=15.008.20082<=21.007.20096 | |
| Adobe Acrobat Reader | >=15.008.20082<=21.007.20096 | |
| macOS | ||
| Adobe Acrobat Reader | >=20.001.30005<=20.004.30015 | |
| Adobe Acrobat Reader Notification Manager | >=20.001.30005<=20.004.30015 | |
| Adobe Acrobat Reader | >=17.011.30158<=17.011.30202 | |
| Adobe Acrobat Reader Notification Manager | >=17.011.30158<=17.011.30202 |
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Frequently Asked Questions
What is the severity of CVE-2021-40728?
CVE-2021-40728 is a critical severity use-after-free vulnerability.
How do I fix CVE-2021-40728?
To fix CVE-2021-40728, update Adobe Acrobat Reader DC to the latest version available.
Which versions are affected by CVE-2021-40728?
CVE-2021-40728 affects Adobe Acrobat Reader DC versions up to 21.007.20095, among others.
What causes the CVE-2021-40728 vulnerability?
CVE-2021-40728 is caused by improper processing of the GetURL function which leads to a use-after-free condition.
Can CVE-2021-40728 be exploited remotely?
Yes, CVE-2021-40728 can potentially be exploited remotely by attackers through crafted PDF files.
- agent/type
- agent/weakness
- agent/author
- agent/references
- agent/description
- agent/title
- agent/severity
- 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 reader dc
- version/adobe acrobat reader dc/15.008.20082
- version/adobe acrobat reader dc/21.007.20095
- canonical/adobe acrobat reader
- version/adobe acrobat reader/15.008.20082
- version/adobe acrobat reader/21.007.20095
- vendor/microsoft
- canonical/microsoft windows operating system
- version/adobe acrobat reader dc/21.007.20096
- version/adobe acrobat reader/21.007.20096
- vendor/apple
- canonical/macos
- version/adobe acrobat reader/20.001.30005
- version/adobe acrobat reader/20.004.30015
- canonical/adobe acrobat reader notification manager
- version/adobe acrobat reader notification manager/20.001.30005
- version/adobe acrobat reader notification manager/20.004.30015
- version/adobe acrobat reader/17.011.30158
- version/adobe acrobat reader/17.011.30202
- version/adobe acrobat reader notification manager/17.011.30158
- version/adobe acrobat reader notification manager/17.011.30202