CVE-2021-40729

Published: Oct 15, 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

Adobe Acrobat Reader DC version 21.007.20095 (and earlier), 21.007.20096 (and earlier), 20.004.30015 (and earlier), and 17.011.30202 (and earlier) is affected by a out-of-bounds read vulnerability 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 PDF file.

Affected (8)

Products: Adobe: Acrobat Dc, Acrobat Reader Dc, Acrobat, Acrobat Reader

4 products

Acrobat Reader Dc

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat Dc	15.008.20082 ≤ version ≤ 21.007.20095
Adobe Acrobat Reader Dc	15.008.20082 ≤ version ≤ 21.007.20095

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat Dc	15.008.20082 ≤ version ≤ 21.007.20096
Adobe Acrobat Reader Dc	15.008.20082 ≤ version ≤ 21.007.20096

Configuration C

2 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat	20.001.30005 ≤ version ≤ 20.004.30015
Adobe Acrobat Reader	20.001.30005 ≤ version ≤ 20.004.30015

Configuration D

2 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Adobe Acrobat	17.011.30158 ≤ version ≤ 17.011.30202
Adobe Acrobat Reader	17.011.30158 ≤ version ≤ 17.011.30202

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/apsb21-104.html

Source: psirt@adobe.com

Release NotesVendor Advisory

https://helpx.adobe.com/security/products/acrobat/apsb21-104.html

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

Release NotesVendor Advisory

Timeline

No history available yet.