Vulnerability · Published Jan 14, 2022 · Assigned by adobe

CVE-2021-44714Adobe Acrobat Reader Missing Custom Protocols in Warning Message Prompts

Low 2.5

In plain English

A low-severity security flaw in Acrobat Reader from Adobe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 85% of all known vulnerabilities).

Severity (CVSS 3.1)2.5Low

Exploit odds (30 days)2.6%top 14.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Adobe	Acrobat Reader	unspecified – through 21.007.20099unspecified – through 20.004.30017unspecified – through 17.011.30204unspecified – through None

Weakness: CWE-657 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

References

https://helpx.adobe.com/security/products/acrobat/apsb22-01.html x_refsource_MISC