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Vulnerability DatabaseCVE-2021-28545

CVE-2021-28545: 
Adobe Acrobat Reader Continuous vulnerability analysis and mitigation

Overview

CVE-2021-28545 is a security vulnerability affecting Adobe Acrobat Reader DC versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier), and 2017.011.30188 (and earlier). The vulnerability was disclosed in February 2021 and is related to missing support for integrity checks in certified PDF documents (NVD).

Technical details

The vulnerability is classified with a CVSS v3.1 Base Score of 8.1 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N. It is categorized under CWE-353 (Missing Support for Integrity Check). The vulnerability allows an unauthenticated attacker to manipulate data in a certified PDF without invalidating the original certification (NVD).

Impact

The vulnerability enables attackers to completely manipulate data within certified PDF documents while maintaining the appearance of valid certification. This compromises document integrity and could lead to serious security implications in environments where certified PDFs are used for official or sensitive documentation (NVD).

Mitigation and workarounds

Adobe has released security updates to address this vulnerability. Users are advised to update to the latest versions of Adobe Acrobat and Reader as detailed in the security bulletin APSB21-09 (Adobe Advisory).

Additional resources

Source: This report was generated using AI

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