CVE-2021-39841

HighCVSS 7.8/10Last modified Jun 17, 2026

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 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.

Metrics

CVSS 3.0 7.8/10CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-843

Affected software

VendorProductVersions
AdobeAcrobat Reader>= unspecified, <= DC 2021 July; >= unspecified, <= 20.0-Classic 2021 July; >= unspecified, <= 17.0-Classic 2021 July; >= unspecified, <= None

References

Timeline

Published
Sep 29, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-398427.8Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a useCVE-2021-398437.8Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an ouCVE-2021-398443.3Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an ouCVE-2021-398456.1Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a staCVE-2021-398466.1Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a staCVE-2021-398477.8XMP Toolkit SDK version 2020.1 (and earlier) is affected by a stack-based buffer overflow vulnerability potentially resulting in arbitrary cCVE-2021-398495.5Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a NulCVE-2021-39859.0kimai2 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2021-398505.5Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a NulCVE-2021-398515.5Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a NulCVE-2021-398525.5Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a NulCVE-2021-398535.5Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Nul
CVE-2021-39841: High severity, CVSS 7.8 | Vulnix