CVE-2021-21089: Adobe Acrobat DC

Low severity, CVSS 3.3. EPSS: 1.9% 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 an out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to locally escalate privileges 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 DC: from 20.006.20034, up to and including 20.013.20074; from 20.001.30005, up to and including 20.001.30018; from 17.011.30158, up to and including 17.011.30188
• Adobe Acrobat Reader DC: from 20.006.20034, up to and including 20.013.20074; from 20.001.30005, up to and including 20.001.30018; from 17.011.30158, up to and including 17.011.30188

Published 2021-09-30. Last modified 2026-06-17.