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CVE-2021-28550Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution
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.
8.8 HIGHEPSS 52.13%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.8 | HIGH | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 9.6 | CRITICAL | 3.0adobe (CNA) | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| 6.8 | MEDIUM | 2.0NVD | AV:N/AC:M/Au:N/C:P/I:P/A:P |
CISA required action
⚡ Known exploited · remediation due Nov 17, 2021
Apply updates per vendor instructions.
Details
- CVE ID
- CVE-2021-28550
- Status
- Analyzed
- Assigner (CNA)
- adobe
- Published
- Sep 2, 2021
- Last modified
- 2026-06-17 03:46 UTC
- Weaknesses
- CWE-416 · Use After Free (CWE-416)
Affected Products
As published by the CNA in the CVE record.
AdobeAcrobat Reader4 version ranges
- through 2020.001.30020
- through 2021.001.20150
- through 2017.011.30194
- through None