CVE-2021-39852: Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service
First published: Wed Sep 29 2021(Updated: )
Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service 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 | >=17.011.30059<=17.011.30199 | |
| Adobe Acrobat Reader | >=17.011.30059<=17.011.30199 | |
| Apple macOS | ||
| Microsoft Windows | ||
| Adobe Acrobat Reader | >=20.001.30005<=20.004.30006 | |
| Adobe Acrobat Reader | >=20.001.30005<=20.004.30006 | |
| Adobe Acrobat Dc | >=15.008.20082<=21.005.20058 | |
| Adobe Acrobat Reader DC | >=15.008.20082<=21.005.20058 | |
| Adobe Acrobat Dc | >=15.008.20082<=21.005.20060 | |
| Adobe Acrobat Reader DC | >=15.008.20082<=21.005.20060 |
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 CVE-2021-39852?
CVE-2021-39852 is a vulnerability in Adobe Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier), and 2017.011.30199 (and earlier) that allows an attacker to achieve application denial-of-service.
How does CVE-2021-39852 affect Adobe Acrobat and Adobe Acrobat Reader?
CVE-2021-39852 affects Adobe Acrobat and Adobe Acrobat Reader versions as mentioned in the vulnerability.
How severe is CVE-2021-39852?
CVE-2021-39852 has a severity rating of 5.5 (medium).
How can an attacker leverage CVE-2021-39852?
An unauthenticated attacker could leverage CVE-2021-39852 to achieve application denial-of-service.
Where can I find more information about CVE-2021-39852?
You can find more information about CVE-2021-39852 at the following link: [Adobe Security Bulletin](https://helpx.adobe.com/security/products/acrobat/apsb21-55.html).
- agent/type
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/weakness
- agent/author
- agent/references
- agent/softwarecombine
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/title
- agent/first-publish-date
- agent/tags
- agent/event
- vendor/adobe
- canonical/adobe acrobat reader
- version/adobe acrobat reader/17.011.30059
- version/adobe acrobat reader/17.011.30199
- vendor/apple
- canonical/apple macos
- vendor/microsoft
- canonical/microsoft windows
- version/adobe acrobat reader/20.001.30005
- version/adobe acrobat reader/20.004.30006
- canonical/adobe acrobat dc
- version/adobe acrobat dc/15.008.20082
- version/adobe acrobat dc/21.005.20058
- canonical/adobe acrobat reader dc
- version/adobe acrobat reader dc/15.008.20082
- version/adobe acrobat reader dc/21.005.20058
- version/adobe acrobat dc/21.005.20060
- version/adobe acrobat reader dc/21.005.20060