CVE-2018-3943

An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's 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.

• CWE-416

• http://www.securitytracker.com/id/1041769Third Party Advisory, VDB Entry
• https://talosintelligence.com/vulnerability_reports/TALOS-2018-0610Third Party Advisory
• https://www.foxitsoftware.com/support/security-bulletins.phpPatch, Vendor Advisory
• http://www.securitytracker.com/id/1041769Third Party Advisory, VDB Entry
• https://talosintelligence.com/vulnerability_reports/TALOS-2018-0610Third Party Advisory

Published

Oct 2, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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