CVE-2021-21822

HIGH

Foxitsoftware Foxit Reader - Use After Free

Title source: rule

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.

References (1)

[Exploit, Third Party Advisory] https://talosintelligence.com/vulnerability_reports/TALOS-2021-1287

Scores

CVSS v3 8.8

EPSS 0.1980

EPSS Percentile 95.3%

Attack Vector NETWORK

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

Classification

CWE

CWE-416

Status published

Affected Products (1)

foxitsoftware/foxit_reader

Timeline

Published May 10, 2021

Tracked Since Feb 18, 2026