CVE-2021-34846: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability
First published: Wed Aug 04 2021(Updated: )
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14120.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxit PDF Reader | <=11.0.0.49893 | |
| Foxitsoftware Pdf Editor | <=10.1.4.37651 | |
| Foxitsoftware Pdf Editor | =11.0.0.49893 | |
| 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 CVE-2021-34846?
CVE-2021-34846 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893.
How can this vulnerability be exploited?
This vulnerability can be exploited when the target visits a malicious page or opens a malicious file.
What is the severity of CVE-2021-34846?
The severity of CVE-2021-34846 is high, with a CVSS score of 7.8.
Where can I find more information about CVE-2021-34846?
More information about CVE-2021-34846 can be found in the Foxit security bulletins and the Zero Day Initiative advisory.
How do I patch or fix CVE-2021-34846?
To patch or fix CVE-2021-34846, you should update your Foxit PDF Reader to the latest version provided by the vendor.
- collector/nvd-index
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/severity
- agent/title
- agent/weakness
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/tags
- agent/event
- agent/softwarecombine
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-928
- alias/ZDI-CAN-14120
- alias/CVE-2021-34846
- agent/software-canonical-lookup
- vendor/foxit
- canonical/foxit pdf reader
- version/foxit pdf reader/11.0.0.49893
- vendor/foxitsoftware
- canonical/foxitsoftware pdf editor
- version/foxitsoftware pdf editor/10.1.4.37651
- version/foxitsoftware pdf editor/11.0.0.49893
- vendor/microsoft
- canonical/microsoft windows