VULNERABILITY INTELLIGENCE

CVE-2021-39863

CVSS score7.8 HIGH
EPSS probability13.19%
CISA KEVNot currently listed
Published2021-09-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted PDF file. 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.

Weakness classification

  • psirt@adobe.com: CWE-122

Primary references