Vulnerability · Published Oct 15, 2021 · Assigned by adobe

CVE-2021-40728Adobe Acrobat Reader DC Use After Free Arbitrary Code Execution

High 7.8

In plain English

A high-severity use-after-free 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 54.6% (higher than 99.0% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)54.6%top 1.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Adobe Acrobat Reader DC version 21.007.20095 (and earlier), 21.007.20096 (and earlier), 20.004.30015 (and earlier), and 17.011.30202 (and earlier) is affected by a use-after-free vulnerability in the processing of the GetURL function on a global object window that could result in 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.

Affected products (as reported)

Vendor	Product	Versions
Adobe	Acrobat Reader	unspecified – through 21.007.20095unspecified – through 21.007.20096unspecified – through 20.004.30015unspecified – through 17.011.30202

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://helpx.adobe.com/security/products/acrobat/apsb21-104.html x_refsource_MISC