CVE-2021-21088: Adobe Acrobat

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (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

• Adobe Acrobat: from 17.011.30180, before 17.011.30190 (fixed in 17.011.30190); from 20.001.30005, before 20.001.30020 (fixed in 20.001.30020)
• Adobe Acrobat DC: from 15.007.20033, before 21.001.20135 (fixed in 21.001.20135)
• Adobe Acrobat Reader: from 17.011.30180, before 17.011.30190 (fixed in 17.011.30190); from 20.001.30005, before 20.001.30020 (fixed in 20.001.30020)
• Adobe Acrobat Reader DC: from 15.007.20033, before 21.001.20135 (fixed in 21.001.20135)

Published 2023-09-06. Last modified 2026-06-17.