CVE-2021-21017

Severity CVSS v4.0:

Pending analysis

Type:

CWE-122 Heap-based Buffer Overflow

Publication date:

11/02/2021

Last modified:

13/02/2025

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 a heap-based buffer overflow vulnerability. 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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

6.80

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:adobe:acrobat:::::classic:::*	17.0 (including)	17.011.30188 (including)
cpe:2.3:a:adobe:acrobat:::::classic:::*	20.0 (including)	20.001.30018 (including)
cpe:2.3:a:adobe:acrobat_dc:::::continuous:::*		20.013.20074 (including)
cpe:2.3:a:adobe:acrobat_reader:::::classic:::*	17.0 (including)	17.011.30188 (including)
cpe:2.3:a:adobe:acrobat_reader:::::classic:::*	20.0 (including)	20.001.300183 (including)
cpe:2.3:a:adobe:acrobat_reader_dc:::::continuous:::*		20.013.20074 (including)
cpe:2.3:o:apple:macos:-:::::::*
cpe:2.3:o:microsoft:windows:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-21017

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools