CVE-2021-21089

Published: Sep 30, 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 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 (6)

Products: Adobe: Acrobat Dc, Acrobat Reader Dc

2 products

Acrobat Reader Dc

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat Dc	From 20.006.20034 to 20.013.20074
Adobe Acrobat Reader Dc	From 20.006.20034 to 20.013.20074

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat Dc	From 20.001.30005 to 20.001.30018
Adobe Acrobat Reader Dc	From 20.001.30005 to 20.001.30018

Configuration C

2 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Adobe Acrobat Dc	From 17.011.30158 to 17.011.30188
Adobe Acrobat Reader Dc	From 17.011.30158 to 17.011.30188

Running on/with	Platform Versions
Apple Macos	All versions
Microsoft Windows	All versions

Related CWEs

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (2)

https://helpx.adobe.com/security/products/acrobat/apsb21-09.html

Source: psirt@adobe.com

Release NotesVendor Advisory

https://helpx.adobe.com/security/products/acrobat/apsb21-09.html

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

Release NotesVendor Advisory

Timeline

No history available yet.