CVE-2018-3967

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-10-03 · updated 2026-06-17
Weakness: CWE-416

Description

An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's Foxit PDF Reader version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.

Affected products

Foxit PhantomPDF: through 9.2.0.9297
Foxit Reader: through 9.2.0.9297

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0632
https://www.foxitsoftware.com/support/security-bulletins.php
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0632

Get alerted when CVE-2018-3967 or the next vulnerability affects your stack