CVE-2021-44714

Adobe Acrobat Reader Missing Custom Protocols in Warning Message Prompts

CVE-2021-44714 is fixed in 2 products on 1 platform, first by Adobe Acrobat Reader DC 21.011.20039, released December 24, 2021. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
3.3
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0250
84th percentile

Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a Violation of Secure Design Principles that could lead to a Security feature bypass. Acrobat Reader DC displays a warning message when a user clicks on a PDF file, which could be used by an attacker to mislead the user. In affected versions, this warning message does not include custom protocols when used by the sender. User interaction is required to abuse this vulnerability as they would need to click 'allow' on the warning message of a malicious file.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Adobe Acrobat Reader DC 21.011.20039 Adobe Acrobat Reader DC 21.011.20039 Dec 24, 2021
Adobe Acrobat Reader DC (64-bit) 21.011.20039 Adobe Acrobat Reader DC (64-bit) 21.011.20039 Dec 24, 2021

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