CVE-2021-21822 Information

Description

A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader version 10.1.3.37598. A specially crafted PDF document can trigger the reuse of previously free memory which can lead to arbitrary code execution. An attacker needs to trick the user into opening a malicious file or site to trigger this vulnerability if the browser plugin extension is enabled.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1287

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8