CVE-2021-39841 : Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and ear

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Type Confusion vulnerability. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Published 2021-09-29 16:15:09

Updated 2021-10-06 21:05:43

Source Adobe Systems Incorporated

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2021-39841

Adobe » Acrobat Reader » Classic Edition
Versions from including (>=) 20.001.30005 and up to, including, (<=) 20.004.30006
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*
Matching versions
When used together with: Apple » Macos » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
Adobe » Acrobat Reader » Classic Edition
Versions from including (>=) 17.011.30059 and up to, including, (<=) 17.011.30199
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*
Matching versions
When used together with: Apple » Macos » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
Adobe » Acrobat » Classic Edition
Versions from including (>=) 20.001.30005 and up to, including, (<=) 20.004.30006
cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*
Matching versions
When used together with: Apple » Macos » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
Adobe » Acrobat » Classic Edition
Versions from including (>=) 17.011.30059 and up to, including, (<=) 17.011.30199
cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*
Matching versions
When used together with: Apple » Macos » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
Adobe » Acrobat Dc » Continuous Edition
Versions from including (>=) 15.008.20082 and up to, including, (<=) 21.005.20058
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
Matching versions
When used together with: Apple » Macos » Version: N/A
Adobe » Acrobat Dc » Continuous Edition
Versions from including (>=) 15.008.20082 and up to, including, (<=) 21.005.20060
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
Matching versions
When used together with: Microsoft » Windows » Version: N/A
Adobe » Acrobat Reader Dc » Continuous Edition
Versions from including (>=) 15.008.20082 and up to, including, (<=) 21.005.20058
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
Matching versions
When used together with: Apple » Macos » Version: N/A
Adobe » Acrobat Reader Dc » Continuous Edition
Versions from including (>=) 15.008.20082 and up to, including, (<=) 21.005.20060
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
Matching versions
When used together with: Microsoft » Windows » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-39841

EPSS FAQ

0.25%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 65 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-39841

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	1.8	5.9	Adobe Systems Incorporated
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-39841

CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Assigned by: psirt@adobe.com (Primary)

References for CVE-2021-39841

https://helpx.adobe.com/security/products/acrobat/apsb21-55.html

Adobe Security Bulletin
Release Notes;Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2021-39841

Products affected by CVE-2021-39841

Exploit prediction scoring system (EPSS) score for CVE-2021-39841

CVSS scores for CVE-2021-39841

CWE ids for CVE-2021-39841

References for CVE-2021-39841