CVE-2021-40723

Published: Sep 7, 2023Modified: Jun 17, 2026

5.5

Vector

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

Exploitability: 1.8 / Impact: 3.6

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 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 (6)

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

4 products

Configuration A

6 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Adobe Acrobat	Before 20.001.30020
Adobe Acrobat	From 20.0 to 20.001.30020
Adobe Acrobat Dc	Before 21.001.20135
Adobe Acrobat Reader	Before 17.011.30190
Adobe Acrobat Reader	From 20.0 to 20.001.30020
Adobe Acrobat Reader Dc	Before 21.001.20135

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

Related CWEs

CWE-125

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

Vendor Advisory

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

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

Vendor Advisory

Timeline

No history available yet.