CVE-2021-28643

Published: Aug 20, 2021Modified: Jun 17, 2026

3.3

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploitability: 1.8 / Impact: 1.4

Source: psirt@adobe.com (Secondary)

Description

Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by a Type Confusion vulnerability. An unauthenticated attacker could leverage this vulnerability to disclose sensitive memory information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected (6)

Products: Adobe: Acrobat Dc, Acrobat Reader Dc

Adobe

2 products

Acrobat Dc

Acrobat Reader Dc

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat Dc	17.011.30059 ≤ version ≤ 17.011.30197
Adobe Acrobat Dc	20.001.30005 ≤ version ≤ 20.004.30005
Adobe Acrobat Dc	15.008.20082 ≤ version ≤ 21.005.20054
Adobe Acrobat Reader Dc	17.011.30059 ≤ version ≤ 17.011.30197
Adobe Acrobat Reader Dc	20.001.30005 ≤ version ≤ 20.004.30005
Adobe Acrobat Reader Dc	15.008.20082 ≤ version ≤ 21.005.20054

Related CWEs

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

References (2)

https://helpx.adobe.com/security/products/acrobat/apsb21-51.html

Source: psirt@adobe.com

Release NotesVendor Advisory

https://helpx.adobe.com/security/products/acrobat/apsb21-51.html

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

Timeline

No history available yet.