CVE-2021-40420

HIGH

8.8

Description

A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 11.1.0.52543. A specially-crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially-crafted, malicious site if the browser plugin extension is enabled.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published2/4/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

foxit:pdf_reader

Weaknesses (CWE)

CWE-416CWE-416

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1429(talos-cna@cisco.com)

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1429(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.