CVE-2021-44707 : Vulnerability Insights and Analysis
Learn about CVE-2021-44707 affecting Adobe Acrobat Reader DC versions, leading to arbitrary code execution. Find mitigation steps and update recommendations.
Adobe Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier), and 17.011.30204 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution. This article provides insights into the vulnerability, its impact, and mitigation steps.
Understanding CVE-2021-44707
Adobe Acrobat Reader DC OTF Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
What is CVE-2021-44707?
CVE-2021-44707 is an out-of-bounds write vulnerability in Adobe Acrobat Reader DC versions, potentially allowing an attacker to execute arbitrary code in the context of the current user. Exploitation requires user interaction by opening a malicious file.
The Impact of CVE-2021-44707
The vulnerability has a CVSS base score of 7.8 (High severity) with high impacts on confidentiality, integrity, and availability. It requires no special privileges from the user and poses a risk of remote code execution.
Technical Details of CVE-2021-44707
Adobe Acrobat Reader DC version 21.007.20099 (and earlier) is susceptible to the following:
Vulnerability Description
An out-of-bounds write vulnerability that could lead to arbitrary code execution.
Affected Systems and Versions
- Acrobat Reader DC version 21.007.20099 (and earlier)
- Acrobat Reader DC version 20.004.30017 (and earlier)
- Acrobat Reader DC version 17.011.30204 (and earlier)
Exploitation Mechanism
Exploitation requires user interaction, where a victim must open a malicious file to trigger the vulnerability.
Mitigation and Prevention
Immediate Steps to Take
- Update Adobe Acrobat Reader DC to the latest version.
- Be cautious while opening files from unknown or untrusted sources.
Long-Term Security Practices
- Regularly update software and operating systems to patch known vulnerabilities.
- Educate users on safe browsing practices and file handling techniques.
Patching and Updates
Ensure Adobe Acrobat Reader DC is regularly updated to address security vulnerabilities effectively.