CVE-2021-21870

HIGH

Foxit PDF Reader 10.1.4.37651 - Use-After-Free in JavaScript Engine

Title source: llm
STIX 2.1

Description

A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 10.1.4.37651. 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)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1307

Scores

CVSS v3 8.8
EPSS 0.0086
EPSS Percentile 75.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (1)
foxit/pdf_reader 10.1.4.37651
Published Aug 05, 2021
Tracked Since Feb 18, 2026