Unrated severityCISA KEVNVD Advisory· Published Sep 2, 2021· Updated Oct 21, 2025
Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution
CVE-2021-28550
Description
Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by a Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected products
2- Range: <=2021.001.20150 || <=2020.001.30020 || <=2017.011.30194
- Range: unspecified
Patches
Vulnerability mechanics
References
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