CVE-2021-45063: Adobe Acrobat

Medium severity, CVSS 5.5. EPSS: 6.2% chance of exploitation in the next 30 days.

Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

• Adobe Acrobat: from 17.011.30059, up to and including 17.011.30204; from 20.001.30005, up to and including 20.004.30017
• Adobe Acrobat DC: from 15.008.20082, up to and including 21.007.20099
• Adobe Acrobat Reader: from 17.011.30059, up to and including 17.011.30204; from 20.001.30005, up to and including 20.004.30017
• Adobe Acrobat Reader DC: from 15.008.20082, up to and including 21.007.20099

Published 2022-01-14. Last modified 2026-06-17.