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Vulnerability DatabaseCVE-2021-39851
CVE-2021-39851:
Adobe Acrobat Reader Continuous vulnerability analysis and mitigation
Overview
CVE-2021-39851 is a Null pointer dereference vulnerability affecting Adobe Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier), and 2017.011.30199 (and earlier). The vulnerability was disclosed on September 29, 2021 (NVD).
Technical details
The vulnerability is classified as a NULL Pointer Dereference (CWE-476). It has been assigned a CVSS 3.1 Base Score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The CVSS 2.0 Base Score is 4.3 (Medium) with vector (AV:N/AC:M/Au:N/C:N/I:N/A:P) (NVD).
Impact
An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. The exploitation requires user interaction, specifically that a victim must open a malicious file (NVD).
Mitigation and workarounds
Adobe has released security updates to address this vulnerability. Users are advised to update to the latest version of Adobe Acrobat and Reader as detailed in the security bulletin APSB21-55 (Adobe Advisory).
Additional resources
Source: This report was generated using AI
Related Adobe Acrobat Reader Continuous vulnerabilities:
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