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CVE-2021-39863

nvd nist
Published: Sep 29, 2021Modified: Jun 17, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: psirt@adobe.com (Secondary)

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.

Affected (7)

Adobe
6 products
Acrobat Dc
Acrobat Reader Dc
Acrobat
Acrobat Reader
Acrobat 2017
Acrobat Reader 2017
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Acrobat Dc
15.008.20082 ≤ version ≤ 21.005.20060
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Acrobat Reader Dc
15.008.20082 ≤ version ≤ 21.005.20060
Configuration D
1 vulnerable
Vulnerable SoftwareAffected Versions
Acrobat Dc
15.008.20082 ≤ version ≤ 21.005.20058
Configuration E
2 vulnerable
Vulnerable SoftwareAffected Versions
Acrobat
20.001.30005 ≤ version ≤ 20.004.30006
Acrobat Reader
20.001.30005 ≤ version ≤ 20.004.30006
Configuration F
2 vulnerable · 2 platform
Vulnerable SoftwareAffected Versions
Acrobat 2017
17.011.30059 ≤ version ≤ 17.011.30199
Acrobat Reader 2017
17.011.30059 ≤ version ≤ 17.011.30199
Running on/withPlatform Versions
Apple
Macos
All versions
Microsoft
Windows
All versions

Related CWEs

CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (2)

Source: psirt@adobe.com
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory

Timeline

No history available yet.